MT9M034I12STC - ON SEMICONDUCTOR

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

MT9M034_DS Rev F Pub. 3/15 EN 1©Semiconductor Components Industries, LLC,2010

1/3-Inch CMOS Digital Image Sensor

MT9M034 Data Sheet, Rev. F

For the latest data sheet, please visit www.aptina.com

Features

• Superior low-light performance

• HD video (720p60)

• Linear or high dynamic range capture

• Video/Single Frame modes

• On-chip AE and statistics engine

• Parallel and serial output

• Auto black level calibration

•Context switching

•Temperature Sensor

Applications

• Video surveillance

• 720p60 video applications

• High dynamic range imaging

General Description

The ON Semiconductor MT9M034 is a 1/3-inch CMOS

digital image sensor with an active-pixel array of

1280H x 960V. It captures images in either linear or

high dynamic range modes, with a rolling-shutter

readout. It includes sophisticated camera functions

such as auto exposure control, windowing, and both

video and single frame modes. It is designed for both

low light and high dynamic range scene performance.

It is programmable through a simple two-wire serial

interface. The MT9M034 produces extraordinarily

clear, sharp digital pictures, and its ability to capture

both continuous video and single frames makes it the

perfect choice for a wide range of applications, includ-

ing surveillance and HD video.

Table 1: Key Parameters

Parameter Typical Value

Optical format 1/3-inch (6 mm)

Active pixels 1280 x 960 = 1.2 Mp

Pixel size 3.75m

Color filter array RGB Bayer or monochrome

Shutter type Electronic rolling shutter

Input clock range 6 – 50 MHz

Output clock maximum 74.25 MHz

*1.8V VDD_IO is recommended due to better row noise per-

formance

Ordering Information

Output Parallel 12-bit

Frame

rate

Full resolution 45 fps

720p 60 fps

Responsivity 5.48 V/lux-sec

SNRMAX 43.9 dB

Maximum dynamic range >115 dB

Supply

voltage

I/O 1.8 or 2.8V*

Digital 1.8 V

Analog 2.8 V

Power consumption

270 mW (1280 x 720

60 fps Parallel output Linear

Mode)

460 mW (1280 x 720 60 fps

Parallel output HDR Mode)

Operating temperature

(ambient) -TA–30°C to + 70° C (surveillance)

Package options 10x10 mm 48-pin iLCC

Bare die

Table 2: Available Part Numbers

Part Number Description

MT9M034I12STC 48 iLCC, Color, Parallel output

MT9M034I12STM 48 iLCC, Mono, Parallel output

MT9M034I12STCH ES 48 iLCC, Head Board, Color, Parallel

output

MT9M034I12STMH ES 48iLCC, Headboard, Mono, Parallel

output

MT9M034I12STCD ES 48 iLCC, Demo Kit, Color, Parallel

output

Table 1: Key Parameters (continued)

Parameter Typical Value

MT9M034_DS Rev F Pub. 3/15 EN 2©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Table of Contents

Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Ordering Information. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Functional Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Pixel Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Output Data Format . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

High Dynamic Range Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Real-Time Context Switching . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Two-Wire Serial Register Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

Spectral Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Electrical Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Power-On Reset and Standby Timing. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Package Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

Revision History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54

MT9M034_DS Rev F Pub. 3/15 EN 3©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

List of Figures

Figure 1: Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Figure 2: Typical Configuration: Parallel Pixel Data Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Figure 3: 48 iLCC Package, Parallel Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Figure 4: Pixel Array Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Figure 5: Pixel Color Pattern Detail (Top Right Corner) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Figure 6: Imaging a Scene . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Figure 7: Spatial Illustration of Image Readout. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Figure 8: Default Pixel Output Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Figure 9: LV Format Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Figure 10: Line Timing and FRAME_VALID/LINE_VALID Signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Figure 11: HDR Data Compression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18

Figure 12: PLL-Generated Master Clock PLL Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23

Figure 13: Eight Pixels in Normal and Column Mirror Readout Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26

Figure 14: Six Rows in Normal and Row Mirror Readout Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27

Figure 15: Frame Format with Embedded Data Lines Enabled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

Figure 16: Format of Embedded Data Output within a Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

Figure 17: Format of Embedded Statistics Output within a Frame. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32

Figure 18: Single READ from Random Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Figure 19: Single READ from Current Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Figure 20: Sequential READ, Start from Random Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38

Figure 21: Sequential READ, Start from Current Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Figure 22: Single WRITE to Random Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Figure 23: Sequential WRITE, Start at Random Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39

Figure 24: Quantum Efficiency – Color Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .40

Figure 25: Estimated Quantum Efficiency – Monochrome Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41

Figure 26: Two-Wire Serial Bus Timing Parameters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Figure 27: I/O Timing Diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Figure 28: Power Supply Rejection Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Figure 29: Power Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50

Figure 30: Power Down. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

Figure 31: 48 iLCC Package Outline Drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53

MT9M034_DS Rev F Pub. 3/15 EN 4©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

List of Tables

Table 1: Key Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Table 2: Available Part Numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1

Table 3: Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8

Table 4: Digital Gain Control for odd and even x_addr_start (R0x3004) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Table 5: Frame Time (Example Based on 1280 x 960, 45 Frames Per Second) . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Table 6: Frame Time: Long Integration Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17

Table 7: Knee Points for Compression to 14 Bits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Table 8: Knee Points for Compression to 12 Bits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

Table 9: Digital Gain Setting for Each T1/T2 and T2/T3Ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

Table 10: Real-Time Context-Switch Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22

Table 11: Test Pattern Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35

Table 12: Two-Wire Serial Bus Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42

Table 13: I/O Timing Characteristics (2.8V VDD_IO)1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .44

Table 14: I/O Timing Characteristics (1.8V VDD_IO)1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Table 15: I/O Rise Slew Rate (2.8V VDD_IO)1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45

Table 16: I/O Fall Slew Rate (2.8V VDD_IO)1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Table 17: I/O Rise Slew Rate (1.8V VDD_IO)1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Table 18: I/O Fall Slew Rate (1.8V VDD_IO)1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46

Table 19: DC Electrical Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Table 20: Absolute Maximum Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .47

Table 21: Operating Current Consumption in Parallel Output and Linear Mode . . . . . . . . . . . . . . . . . . . . . . . .48

Table 22: Operating Current Consumption in Parallel Output and HDR Mode . . . . . . . . . . . . . . . . . . . . . . . . . .48

Table 23: Standby Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49

Table 24: Power-Up Sequence. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .51

Table 25: Power-Down Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52

MT9M034_DS Rev F Pub. 3/15 EN 5©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

General Description

The ON Semiconductor MT9M034 can be operated in its default mode or programmed

for frame size, exposure, gain, and other parameters. The default mode output is a 960p-

resolution image at 45 frames per second (fps). In linear mode, it outputs 12-bit raw

data. In high dynamic range mode, it outputs 12-bit compressed data using parallel

output. The device may be operated in video (master) mode or in single frame trigger

mode.

FRAME_VALID and LINE_VALID signals are output on dedicated pins, along with a

synchronized pixel clock in parallel mode.

The MT9M034 includes additional features to allow application-specific tuning:

windowing and offset, adjustable auto-exposure control, auto black level correction, and

on-board temperature sensor. Optional register information and histogram statistic

information can be embedded in first and last 2 lines of the image frame.

The sensor is designed to operate in a wide temperature range (–30°C to +70°C).

Functional Overview

The MT9M034 is a progressive-scan sensor that generates a stream of pixel data at a

constant frame rate. It uses an on-chip, phase-locked loop (PLL) that can be optionally

enabled to generate all internal clocks from a single master input clock running between

6 and 50 MHz The maximum output pixel rate is 74.25 Mp/s, corresponding to a clock

rate of 74.25 MHz. Figure 1 shows a block diagram of the sensor.

Figure 1: Block Diagram

User interaction with the sensor is through the two-wire serial bus, which communi-

cates with the array control, analog signal chain, and digital signal chain. The core of the

sensor is a 1.2 Mp Active- Pixel Sensor array. The timing and control circuitry sequences

through the rows of the array, resetting and then reading each row in turn. In the time

interval between resetting a row and reading that row, the pixels in the row integrate

incident light. The exposure is controlled by varying the time interval between reset and

readout. Once a row has been read, the data from the columns is sequenced through an

Control Registers

Active Pixel Sensor

(APS)

Array

PLL

Memory

OTPM

Timing and Control

(Sequencer)

Analog Processing and

A/D Conversion

Auto Exposure

and Stats Engine

Pixel Data Path

(Signal Processing)

External

Clock

Parallel

Output

Two-Wire

Serial

Interface

Trigger

Power

MT9M034_DS Rev F Pub. 3/15 EN 6©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Functional Overview

analog signal chain (providing offset correction and gain), and then through an analog-

to-digital converter (ADC). The output from the ADC is a 12-bit value for each pixel in

the array. The ADC output passes through a digital processing signal chain (which

provides further data path corrections and applies digital gain). The sensor also offers a

high dynamic range mode of operation where multiple images are combined on-chip to

produce a single image at 20-bit per pixel value. A compressing mode is further offered

to allow this 20-bit pixel value to be transmitted to the host system as a 12-bit value with

close to zero loss in image quality. The pixel data are output at a rate of up to 74.25 Mp/s,

in parallel to frame and line synchronization signals.

Notes: 1.

Figure 2: Typical Configuration: Parallel Pixel Data Interface

Notes: 1. All power supplies must be adequately decoupled.

2. ON Semiconductor recommends a resistor value of 1.5k, but a greater value may be used for

slower two-wire speed.

3. This pull-up resistor is not required if the controller drives a valid logic level on SCLK at all times.

4. ON Semiconductor recommends that 0.1μF and 10μF decoupling capacitors for each power supply

are mounted as close as possible to the pad. Actual values and results may vary depending on lay-

Master clock

(6–50 MHz)

DATA

SCLK

TEST

FRAME_VALID

OUT

[11:0]EXTCLK

GND

Digital

ground

Analog

ground

Digital

core

power

controller

From

Controller

LINE_VALID

PIXCLK

RESET_BAR

_IO

Digital

I/O

power

1.5kΩ

2, 3

VAA_PIX

Analog

power

VDD_PLL

PLL

power

Analog

power

VAA_PIX

_IO VDD_PLLV

TRIGGER

OE_BAR

STANDBY

AGND

SADDR

MT9M034_DS Rev F Pub. 3/15 EN 7©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Functional Overview

out and design considerations. Check the demo headboard schematics for circuit recommenda-

tions.

5. ON Semiconductor recommends that analog power planes are placed in a manner such that cou-

pling with the digital power planes is minimized.

6. I/O signals voltage must be configured to match VDD_IO voltage to minimize any leakage currents.

7. The serial interface output pads and VDDSLVS can be left unconnected if the parallel output inter-

face is used.

MT9M034_DS Rev F Pub. 3/15 EN 8©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Functional Overview

Figure 3: 48 iLCC Package, Parallel Output

Table 3: Pin Descriptions

Pin Number Name Type Description

OUT4 Output Parallel pixel data output.

OUT5 Output Parallel pixel data output.

OUT6 Output Parallel pixel data output.

DD_PLL Power PLL power.

5 EXTCLK Input External input clock.

GND Power Digital ground.

OUT7 Output Parallel pixel data output.

OUT8 Output Parallel pixel data output.

9DOUT9 Output Parallel pixel data output.

6 5 4 3 2 1 48 47 46 45 44 43

GND

EXTCLK

VDD_PLL

DOUT6

DGND

OUT

7NC 42

OUT

8NC 41

OUT

10 D

OUT

10 A

GND

11 D

OUT

11 V

_PIX 38

12 V

_IO V

_PIX 37

13 PIXCLK V

14 V

GND

15 S

CLK

16 S

DATA

Reserved 33

17 RESET_BAR Reserved 32

18 V

_IO Reserved 31

VDD

STANDBY

SADDR

TEST

FLASH

TRIGGER

FRAME_VALID

LINE_VALID

GND

19 20 21 22 23 24 25 26 27 28 29 30

DOUT5

DOUT4

DOUT3

DOUT2

DOUT1

DOUT0

OE_BAR

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Functional Overview

10 DOUT10 Output Parallel pixel data output.

11 DOUT11 Output Parallel pixel data output (MSB).

12 VDD_IO Power I/O supply power.

13 PIXCLK Output Pixel clock out. DOUT is valid on rising edge of this clock.

14 VDD Power Digital power.

15 SCLK Input Two-Wire Serial clock input.

16 SDATA I/O Two-Wire Serial data I/O.

17 RESET_BAR Input Asynchronous reset (active LOW). All settings are restored to factory

default.

18 VDD_IO Power I/O supply power.

19 VDD Power Digital power.

20 NC

21 NC

22 STANDBY Input Standby-mode enable pin (active HIGH).

23 OE_BAR Input Output enable (active LOW).

24 SADDR Input Two-Wire Serial address select.

25 TEST Input Manufacturing test enable pin (connect to DGND).

26 FLASH oUTPUT Flash output control.

27 TRIGGER Input Exposure synchronization input.

28 FRAME_VALID Output Asserted when DOUT frame data is valid.

29 LINE_VALID Output Asserted when DOUT line data is valid.

30 DGND Power Digital ground

31 Reserved NC

32 Reserved NC

33 Reserved NC

34 VAA Power Analog power.

35 AGND Power Analog ground.

36 VAA Power Analog power.

37 VAA_PIX Power Pixel power.

38 VAA_PIX Power Pixel power.

39 AGND Power Analog ground.

40 VAA Power Analog power.

41 NC

42 NC

43 NC

44 DGND Power Digital ground.

45 DOUT0 Output Parallel pixel data output (LSB)

46 DOUT1 Output Parallel pixel data output.

47 DOUT2 Output Parallel pixel data output.

48 DOUT3 Output Parallel pixel data output.

Table 3: Pin Descriptions (continued)

Pin Number Name Type Description

MT9M034_DS Rev F Pub. 3/15 EN 10 ©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Pixel Data Format

Pixel Array Structure

The MT9M034 pixel array is configured as 1412 columns by 1028 rows, (see Figure 4).

The dark pixels are optically black and are used internally to monitor black level. Of the

right 100 columns, 64 are dark pixels used for row noise correction. Of the top 24 rows of

pixels, 12 of the dark rows are used for black level correction. There are 1296 columns by

976 rows of optically active pixels. While the sensor's format is 1280 x 960, the additional

active columns and active rows are included for use when horizontal or vertical mirrored

readout is enabled, to allow readout to start on the same pixel. The pixel adjustment is

always performed for monochrome or color versions. The active area is surrounded with

optically transparent dummy pixels to improve image uniformity within the active area.

Not all dummy pixels or barrier pixels can be read out.

Figure 4: Pixel Array Description

2 light dummy + 4 barrier + 24 dark + 4 barrier + 6 dark dummy

Dark pixel Barrier pixel Light dummy

pixel Active pixel

2 light dummy + 4 barrier + 6 dark dummy

1412

2 light dummy + 4 barrier

2 light dummy + 4 barrier + 100 dark + 4 barrier

1028

1296 x 976 (1288 x 968 active)

4.86 x 3.66 mm2 (4.83 x 3.63 mm2)

MT9M034_DS Rev F Pub. 3/15 EN 11 ©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Pixel Data Format

Figure 5: Pixel Color Pattern Detail (Top Right Corner)

Default Readout Order

By convention, the sensor core pixel array is shown with pixel (0,0) in the top right

corner (see Figure 5). This reflects the actual layout of the array on the die. Also, the first

pixel data read out of the sensor in default condition is that of pixel (112, 44).

When the sensor is imaging, the active surface of the sensor faces the scene as shown in

Figure 6. When the image is read out of the sensor, it is read one row at a time, with the

rows and columns sequenced as shown in Figure 6 on page 11.

Figure 6: Imaging a Scene

Active Pixel (0,0)

Physical Pixel (112, 44)

Row

Reado

ut Direction

Column Readout Direction

Lens

Pixel (0,0)

Row

Readout

Order

Column Readout Order

Scene

Sensor (rear view)

MT9M034_DS Rev F Pub. 3/15 EN 12 ©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Pixel Data Format

Digital Gain Control

MT9M034 supports four digital gains for the color channels: Red, Green1 (green pixels

on the red rows), Green2 (green pixels on the blue rows), and Blue. Digital gain control of

the MT9M034 is dependent on the configuration of the x_addr_start register. Table 4

illustrates how the digital gains are applied when x_addr_start is even or odd number.

Table 4: Digital Gain Control for odd and even x_addr_start (R0x3004)

Pixels x_addr_start Gain Register

Red Even red_gain R0x305A

Odd green1_gain R0x3056

Green1 (on Red rows) Even green1_gain R0x3056

Odd red_gain R0x305A

Green2 (on Blue rows) Even green2_gain R0x305C

Odd blue_gain R0x3058

Blue Even blue_gain R0x3058

Odd green2_gain R0x305C

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Output Data Format

The MT9M034 image data is read out in a progressive scan. Valid image data is

surrounded by horizontal and vertical blanking (see Figure 7). The amount of horizontal

row time (in clocks) is programmable through R0x300C. The amount of vertical frame

time (in rows) is programmable through R0x300A. Line_Valid (LV) is HIGH during the

shaded region of Figure 7. Optional Embedded Register setup information and Histo-

gram statistic information are available in first 2 and last row of image data.

Figure 7: Spatial Illustration of Image Readout

Readout Sequence

Typically, the readout window is set to a region including only active pixels. The user has

the option of reading out dark regions of the array, but if this is done, consideration must

be given to how the sensor reads the dark regions for its own purposes.

0,0

0,1

0,2

.....................................P

0,n-1

0,n

1,0

1,1

1,2

.....................................P

1,n-1

1,n

00 00 00 .................. 00 00 00

m-1,0

m-1,1

.....................................P

m-1,n-1

m-1,n

m,0

m,1

.....................................P

m,n-1

m,n

00 00 00 .................. 00 00 00

00 00 00 ..................................... 00 00 00

VALID IMAGE HORIZONTAL

BLANKING

VERTICAL BLANKING VERTICAL/HORIZONTAL

BLANKING

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Output Data Format

Parallel Output Data Timing

The output images are divided into frames, which are further divided into lines. By

default, the sensor produces 968 rows of 1284 columns each. The FV and LV signals indi-

cate the boundaries between frames and lines, respectively. PIXCLK can be used as a

clock to latch the data. For each PIXCLK cycle, with respect to the falling edge, one 12-bit

pixel datum outputs on the DOUT pins. When both FV and LV are asserted, the pixel is

valid. PIXCLK cycles that occur when FV is de-asserted are called vertical blanking.

PIXCLK cycles that occur when only LV is de-asserted are called horizontal blanking.

Figure 8: Default Pixel Output Timing

LV and FV

The timing of the FV and LV outputs is closely related to the row time and the frame time.

FV will be asserted for an integral number of row times, which will normally be equal to

the height of the output image.

LV will be asserted during the valid pixels of each row. The leading edge of LV will be

offset from the leading edge of FV by 6 PIXCLKs. Normally, LV will only be asserted if FV

is asserted; this is configurable as described below.

LV Format Options

The default situation is for LV to be de-asserted when FV is de-asserted. By configuring

R0x306E[1:0], the LV signal can take two different output formats. The formats for

reading out four lines and two vertical blanking lines are shown in Figure 9.

PIXCLK

DOUT[11:0]

P0 P1 P2 P3 P4 Pn

Vertical Blanking Horiz Blanking Valid Image Data Horiz Blanking Vertical Blanking

MT9M034_DS Rev F Pub. 3/15 EN 15 ©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Output Data Format

Figure 9: LV Format Options

The timing of an entire frame is shown in Figure 10: “Line Timing and FRAME_VALID/

LINE_VALID Signals,” on page 16.

Default

Continuous LV

MT9M034_DS Rev F Pub. 3/15 EN 16 ©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Output Data Format

Frame Time

The pixel clock (PIXCLK) represents the time needed to sample 1 pixel from the array.

The sensor outputs data at the maximum rate of 1 pixel per PIXCLK. One row time

(tROW) is the period from the first pixel output in a row to the first pixel output in the

next row. The row time and frame time are defined by equations in Table 5.

Figure 10: Line Timing and FRAME_VALID/LINE_VALID Signals

Sensor timing is shown in terms of pixel clock cycles (see Figure 7 on page 13). The

recommended pixel clock frequency is 74.25 MHz. The vertical blanking and the total

frame time equations assume that the integration time (coarse integration time plus fine

integration time) is less than the number of active lines plus the blanking lines:

Window Height + Vertical Blanking (EQ 1)

If this is not the case, the number of integration lines must be used instead to determine

the frame time, (see Table 6). In this example, it is assumed that the coarse integration

time control is programmed with 2000 rows and the fine shutter width total is zero.

For Master mode, if the integration time registers exceed the total readout time, then the

vertical blanking time is internally extended automatically to adjust for the additional

integration time required. This extended value is not written back to the

frame_length_lines register. The frame_length_lines register can be used to adjust

frame-to-frame readout time. This register does not affect the exposure time but it may

extend the readout time.

Table 5: Frame Time (Example Based on 1280 x 960, 45 Frames Per Second)

Parameter Name Equation Default Timing

at 74.25 MHz

AActive data time

Context A: R0x3008 - R0x3004 + 1

Context B: R0x308E - R0x308A + 1

1280 pixel clocks

= 17.23s

P1 Frame start blanking 6 (fixed) 6 pixel clocks

= 0.08s

P2 Frame end blanking 6 (fixed) 6 pixel clocks

= 0.08s

Q Horizontal blanking R0x300C - A 370 pixel clocks

= 4.98s

A+Q (tROW) Line (Row) time R0x300C 1650 pixel clocks

= 22.22s

V Vertical blanking Context A: (R0x300A-(R0x3006-R0x3002+1)) x (A + Q)

Context B: ((R0x30AA-(R0x3090-R0x308C+1)) x (A + Q)

49,500 pixel clocks

= 666.66s

Nrows x (A + Q) Frame valid time Context A: ((R0x3006-R0x3002+1)*(A+Q))-Q+P1+P2

Context B: ((R0x3090-R0x308C+1)*(A+Q))-Q+P1+P2

1,584,000 pixel clocks

= 21.33ms

F Total frame time V + (Nrows x (A + Q)) 1,633,500 pixel clocks

= 22.22ms

P1 A Q A Q A P2

Number of master clocks

FRAME_VALID

LINE_VALID

...

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Output Data Format

Note: The MT9M034 uses column parallel analog-digital converters; thus short line timing is not possi-

ble. The minimum total line time is 1650 columns (horizontal width + horizontal blanking) for

HDR mode and 1400 for linear mode. The minimum horizontal blanking is 370.

Exposure

Total integration time is the result of Coarse_Integration_Time and Fine_Integration_-

Time registers, and depends also on whether manual or automatic exposure is selected.

The actual total integration time, tINT is defined as:

tINT = tINTCoarse - 410 - tINTFine (EQ 2)

= (number of lines of integration x line time) - (410 pixel clocks of conversion time over-

head) - (number of pixels of integration x pixel time)

where:

– Number of Lines of Integration (Auto Exposure Control: Enabled)

When automatic exposure control (AEC) is enabled, the number of lines of integra-

tion may vary from frame to frame, with the limits controlled by R0x311E (mini-

mum auto exposure time) and R0x311C (maximum auto exposure time).

– Number of Lines of Integration (Auto Exposure Control: Disabled)

If AEC is disabled, the number of lines of integration equals the value in R0x3012

(context A) or R0x3016 (context B).

– Number of Pixels of Integration

The number of fine shutter width pixels is independent of AEC mode (enabled or

disabled):

• Context A: the number of pixels of integration equals the value in R0x3014.

• Context B: the number of pixels of integration equals the value in R0x3018. Max-

imum value for tINTFine is line length pixel clocks - 611.

Typically, the value of the Coarse_Integration_Time register is limited to the number of

lines per frame (which includes vertical blanking lines), such that the frame rate is not

affected by the integration time. For more information on coarse and fine integration

time settings limits, please refer to the Register Reference document.

Note: In HDR mode, there are specific limitations on coarse_integration_time due to the

number of line buffers available. Please refer to the section called “HDR Specific

Exposure Settings” on page 20.

For best image quality, it is recommended that the integration time be set to two rows or

greater for the shortest exposure, particularly for monochrome sensors. For linear mode,

this would be the coarse integration time (R0x3012). For HDR mode, the integration

time should be set such that the T3 exposure is 2 rows or greater. Setting the exposure

time to 1 row may result in non-uniformity between rows.

Table 6: Frame Time: Long Integration Time

Parameter Name Equation

(Number of Pixel Clock Cycles) Default Timing

at 74.25 MHz

F’ Total frame time (long

integration time)

Context A: (R0x3012 x (A + Q)) + R0x3014 + P1 + P2

Context B: (R0x3016 x (A + Q)) + V R0x3018 + P1 + P2

3,300,012 pixel clocks

= 44.44ms

MT9M034_DS Rev F Pub. 3/15 EN 18 ©Semiconductor Components Industries, LLC,2010.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

High Dynamic Range Mode

By default, the sensor powers up in Linear Mode, however, the MT9M034 can be config-

ured to run in HDR mode. The HDR scheme used is multi-exposure HDR. This allows

the sensor to handle 120dB of dynamic range. The sensor also features a linear mode. In

HDR mode, the sensor sequentially captures three exposures by maintaining 3 separate

read and reset pointers that are interleaved within the rolling shutter readout. The inter-

mediate pixel values are stored in line buffers while waiting for the 3 exposures values to

be present. As soon as a pixel's 3 exposure values are available, they are combined to

create a linearized 20-bit value for each pixel’s response. This 20-bit value is then option-

ally compressed back to a 12- or 14-bit value for output. For 14-bit mode, the

compressing is lossless. In 12-bit mode, there is minimal data loss. Figure 11 shows the

HDR data compression:

Figure 11: HDR Data Compression

Signal Response to Light Intensity

Digital output

code

K1 = knee point 1

K2 = knee point 2

Pout = P

Decompressed linear

output

ADC max code

Piece-wise Compressed

Signal Output From

Sensor

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

High Dynamic Range Mode

The HDR mode is selected when Operation_Mode_Ctrl, R0x3082[1:0] = 0. Further

controls on exposure time limits and compressing are controlled by R0x3082[5:2], and

R0x31D0. More details can be found in the MT9M034 Register Reference.

In HDR mode, when compression is used, there are two types of knee-points: (i) T1/T2

and T2/T3 capture knee-points and (ii) POUT and POUT2 compression knee-points

(Figure 11). Aligning the capture knee-points on top of the compression knee-points,

can avoid code losses (SNR loss) in the compression. Table 7 and Table 8 below show the

knee points for the different modes. Alternatively, the sensor automatically reports the

knee points and can be read directly from registers R0x319A and R0x319C.

Table 7: Knee Points for Compression to 14 Bits

T1/T2

Exposure Ratio

(R1)

R0x3082[3:2] P1 POUT1

= P1 P2 POUT2 = (P2 - P1)/

R1 + POUT1

T2/T3

Exposure Ratio

(R2)

R0x3082[5:4] PMAX

POUTMAX

= (PMAX - P2)/

(R1*R2) + POUT2

4x 212 4096 214 7168 4x 216 10240

8x 217 10752

16x 218 11008

8x 212 4096 215 7680 4x 217 10752

8x 218 11264

16x 219 11520

16x 212 4096 216 7936 4x 218 11008

8x 219 11520

16x 220 11776

Table 8: Knee Points for Compression to 12 Bits

T1/T2

Exposure Ratio

(R1)

R0x3082[3:2] P1 POUT1

= P1 P2 POUT2 = (P2 - P1)/

(R1* 4)+ POUT1

T2/T3

Exposure Ratio

(R2)

R0x3082[5:4] PMAX

POUTMAX

= (PMAX - P2)/

(R1*R2*4) + POUT2

4x 211 2048 214 2944 4x 216 3712

8x 217 3840

16x 218 3904

8x 211 2048 215 3008 4x 217 3776

8x 218 3904

16x 219 3968

16x 211 2048 216 3040 4x 218 3808

8x 219 3936

16x 220 4000

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

High Dynamic Range Mode

HDR Specific Exposure Settings

In HDR mode, pixel values are stored in line buffers while waiting for all 3 exposures to

be available for final pixel data combination. There are 42 line buffers used to store inter-

mediate T1 data. Due to this limitation, the maximum coarse integration time possible is

equal to 42*T1/T2 lines.

For example, if R0x3082[3:2] = 2, the sensor is set to have T1/T2 ratio = 16x. Therefore the

maximum number of integration lines is 42*16 = 672 lines. If coarse integration time is

greater than this, the T2 integration time will stay at 42. The sensor will calculate the

ratio internally,enabling the linearization to be performed. If companding is being than

relinearization would still follow the programmed ratio. For example if the T1/T2 ratio

was programmed to 16x but coarse integration was increased beyond 672 than one

would still use the 16x relinearization formulas.

An additional limitation is the maximum number of exposure lines in relation to the

frame_length_lines register. In Linear mode, as described on page 20, maximum

coarse_integration_time = frame_length_lines - 1. However in HDR mode, since the

coarse integration time register controls T1, the max coarse_integration time is

frame_length_lines - 45.

Putting the two criteria listed above together, it can be summarized as follows:

(EQ 3)

In HDR mode, subline integration is not utilized. As such, fine integration time register

changes will have no effect on the image.

There is also a limitation of the minimum number of exposure lines that can be used.

This is summarized in the following formula:

(EQ 4)

Due to limitation on the internal floating point calculation, the exact ratio specified by

the RATIO_T2_T3 (R0x3082[5:4]) may not be achievable.

When using companded output in combination with certain exposure ratios (other than

T1/T2 = 16x and T2/T3 = 16x), digital gain needs to be set to a fixed value. Table below

provides the proper digital gain settings for each T1/T2 and T2/T3 ratio.

Table 9: Digital Gain Setting for Each T1/T2 and T2/T3Ratio

T1/T2 Ratio T2/T3 Ratio Setting for Digital Gain Register

(0x305E Context A or 0x30C4 Context B)

4 4 0x02h

4 8 0x04h

416 0x08h

8 4 0x04h

8 8 0x08h

816 0x10h

16 4 0x08h

16 8 0x10h

16 16 Any legal value

maximum coarse_integration_time minimum 42 T1 T2, frame_length_lines 45–



=

minimum coarse_integration_time 0.5*T1 T2





T2 T3



=

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

High Dynamic Range Mode

Motion Compensation

In typical multi-exposure HDR systems, motion artifacts can be created when objects

move during the T1, T2 or T3 integration time. When this happens, edge artifacts can

potentially be visible and might look like a ghosting effect.

To correct this feature, the MT9M034 has special 2D motion compensation circuitry that

detects motion artifacts and corrects the image accordingly.

There are two motion compensation options available. One using the default HDR

motion compensation by setting R0x318C[14] = 1. Additional parameters are available to

control the extent of motion detection and correction as per the requirements of the

specific application. These can be set in R0x318C–R0x3190. The other is using the DLO

method of HDR combination. When using DLO, R0x318C[14] is ignored. DLO is

enabled by setting R0x3190[13] = 1. Noise filtering is enabled by setting R0x3190[14] = 1.

For more information, please refer to the MT9M034 Register Reference document.

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Real-Time Context Switching

In the MT9M034, the user may switch between two full register sets (listed in Table 10)

by writing to a context switch change bit in R0x30B0[13]. This context switch will change

all registers (no shadowing) at the frame start time and have the new values apply to the

immediate next exposure and readout time.

Features

See the MT9M034 Register Reference for additional details.

Reset

The MT9M034 may be reset by using RESET_BAR (active LOW) or the reset register.

Hard Reset of Logic

The RESET_BAR pin can be connected to an external RC circuit for simplicity. The

recommended RC circuit uses a 10k resistor and a 0.1F capacitor. The rise time for the

RC circuit is 1s maximum.

Soft Reset of Logic

Soft reset of logic is controlled by the R0x301A Reset register. Bit 0 is used to reset the

digital logic of the sensor while preserving the existing two-wire serial interface configu-

ration. Furthermore, by asserting the soft reset, the sensor aborts the current frame it is

processing and starts a new frame. This bit is a self-resetting bit and also returns to “0”

during two-wire serial interface reads.

Table 10: Real-Time Context-Switch Registers

Context A Context B

Y_Addr_Start R0x3002 R0x308C

X_Addr_Start R0x3004 R0x308A

Y_Addr_End R0x3006 R0x3090

X_Addr_End R0x3008 R0x308E

Coarse_Integration_Time R0x3012 R0x3016

Fine_Integration_Time R0x3014 R0x3018

Y_Odd_Inc R0x30A6 R0x30A8

Column Gain R0x30B0[5:4] R0x30B0[9:8]

Green1_Gain (GreenR) R0x3056 R0x30BC

Blue_Gain R0x3058 R0x30BE

Red_Gain R0x305A R0x30C0

Green2_Gain (GreenB) R0x305C R0x30C2

Global_Gain R0x305E R0x30C4

Frame_Length_Lines R0x300A R0x30AA

Digital_Binning R0x3032[1:0] R0x3032[5:4]

Operation_Mode_Ctrl 0x3082 0x3084

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

Clocks

The MT9M034 requires one clock input (EXTCLK).

PLL-Generated Master Clock

The PLL contains a prescaler to divide the input clock applied on EXTCLK, a VCO to

multiply the prescaler output, and two divider stages to generate the output clock. The

clocking structure is shown in Figure 12. PLL control registers can be programmed to

generate desired master clock frequency.

Note: The PLL control registers must be programmed while the sensor is in the software

Standby state. The effect of programming the PLL divisors while the sensor is in the

streaming state is undefined.

Figure 12: PLL-Generated Master Clock PLL Setup

The PLL is enabled by default on the MT9M034. To configure and use the PLL:

1. Bring the MT9M034 up as normal; make sure that fEXTCLK is between 6 and 50MHz

and ensure the sensor is in software standby (R0x301A-B[2]= 0). PLL control registers

must be set in software standby.

2. Set pll_multiplier, pre_pll_clk_div, vt_sys_clk_siv, and vt_pix_clk_div based on the

desired input (fEXTCLK) and output (fPIXCLK) frequencies. Determine the M, N, P1, and

P2 values to achieve the desired fPIXCLK using this formula:

fPIXCLK= (fEXTCLK × M) / (N × P1 x P2)

where

M = PLL_Multiplier

N = Pre_PLL_Clk_Div

P1 = Vt_Sys_Clk_Div

P2 = Vt_PIX_Clk_Div

3. Wait 1ms to ensure that the VCO has locked.

4. Set R0x301A[2]=1 to enable streaming and to switch from EXTCLK to the PLL-gener-

ated clock.

Notes: 1. The PLL can be bypassed at any time (sensor will run directly off EXTCLK) by setting

R0x30B0[14]=1. The PLL is always bypassed in software standby mode. To disable the

PLL, the sensor must be in standby mode (R0x301A[2] = 0)

2. The following restrictions apply to the PLL tuning parameters:

Pre PLL

Div

(PFD)

Pre

clk

div

EXTCLK

PLL

Multiplier

(VCO)

PLL Output

Div 1

SYSCLK

PIXCLK

clk

div vt

clk

div

PLL

Input

Clock

PLL Output

Clock

PLL Output

Div 2

pll_multiplier

32 M 255



1N63



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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

3. The VCO frequency, defined as must be within

384-768 MHz.

4. When PLL_Multiplier is odd, 2 MHz <= fEXTCLK / N <= 24 MHz

The user can utilize the Register Wizard tool accompanying DevWare to generate PLL

settings given a supplied input clock and desired output frequency.

Spread-Spectrum Clocking

To facilitate improved EMI performance, the external clock input allows for spread spec-

trum sources, with no impact on image quality. Limits of the spread spectrum input

clock are:

• 5% maximum clock modulation

• 35 KHz maximum modulation frequency

• Accepts triangle wave modulation, as well as sine or modified triangle modulations.

Stream/Standby Control

The sensor supports two standby modes: Hard Standby and Soft Standby. In both

modes, external clock can be optionally disabled to further minimize power consump-

tion. If this is done, then the “Power-Up Sequence” on page 50 must be followed.

Soft Standby

Soft Standby is a low power state that is controlled through register R0x301A[2].

Depending on the value of R0x301A[4], the sensor will go to standby after completion of

the current frame readout (default behavior) or after the completion of the current row

readout. When the sensor comes back from Soft Standby, previously written register

settings are still maintained. Soft standby will not occur if the TRIGGER pin is held high.

A specific sequence needs to be followed to enter and exit from Soft Standby.

Entering Soft Standby:

1. Set R0x301A[2] = 0 and drive the TRIGGER pin LOW.

2. External clock can be turned off to further minimize power consumption (Optional)

Exiting Soft Standby:

1. Enable external clock if it was turned off

2. R0x301A[2] = 1 or drive the TRIGGER pin HIGH.

1P116(P1 = 1, 2, 4, 6,8, 10, 12, 14, 16)



4P216



fVCO fEXTCLK M





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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

Hard Standby

Hard Standby puts the sensor in lower power state; previously written register settings

are still maintained.

A specific sequence needs to be followed to enter and exit from Hard Standby.

Entering Hard Standby:

1. R0x301A[8] = 1

2. Assert STANDBY pin

3. External clock can be turned off to further minimize power consumption (Optional)

Exiting Hard Standby:

1. Enable external clock if it was turned off

2. De-assert STANDBY pin

3. Set R0x301A[8] = 0

Window Control

Registers x_addr_start, x_addr_end, y_addr_start, and y_addr_end control the size and

starting coordinates of the image window.

The exact window height and width out of the sensor is determined by the difference

between the Y address start and end registers or the X address start and end registers,

respectively.

The MT9M034 allows different window sizes for context A and context B.

Blanking Control

Horizontal blank and vertical blank times are controlled by the line_length_pck and

frame_length_lines registers, respectively.

• Horizontal blanking is specified in terms of pixel clocks. It is calculated by subtracting

the X window size from the line_length_pck register. The minimum horizontal

blanking is 370 pixel clocks.

• Vertical blanking is specified in terms of numbers of lines. It is calculated by

subtracting the Y window size from the frame_length_lines register. The minimum

vertical blanking is 26 lines.

The actual imager timing can be calculated using Table 5 on page 16 and Table 6 on

page 17, which describe the Line Timing and FV/LV signals.

When in HDR mode, the maximum size is 1280 x 960.

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

Readout Modes

Digital Binning

By default, the resolution of the output image is the full width and height of the FOV as

defined above. The output resolution can be reduced by digital binning. For RGB and

monochrome mode, this is set by the register R0x3032. For Context A, use bits [1:0], for

Context B, use bits [5:4]. Available settings are:

00 = No binning

01 = Horizontal binning

10 = Horizontal and vertical binning

Binning gives the advantage of reducing noise at the cost of reduced resolution. When

both horizontal and vertical binning are used, a 2x improvement in SNR is achieved,

therefore improving low light performance. Binning results in a smaller resolution

image, but the FOVs between the binned and unbinned images are the same.

Bayer Space Resampling

All of the pixels in the FOV contribute to the output image in digital binning mode. This

can result in a more pleasing output image with reduced subsampling artifacts. It also

improves low-light performance. For RGB mode, resampling can be enabled by setting

of register 0x306E[4] = 1.

Mirror

Column Mirror Image

By setting R0x3040[14] = 1, the readout order of the columns is reversed, as shown in

Figure 13. The starting Bayer color pixel is maintained in this mode by a 1-pixel shift in

the imaging array.

When using horizontal mirror mode, the user must retrigger column correction. Please

refer to the column correction section to see the procedure for column correction retrig-

gering. Bayer resampling must be enabled, by setting bit 4 of register 0x306E[4] = 1.

Figure 13: Eight Pixels in Normal and Column Mirror Readout Modes

Row Mirror Image

By setting R0x3040[15] = 1, the readout order of the rows is reversed as shown in

Figure 14. The starting Bayer color pixel is maintained in this mode by a 1-pixel shift in

the imaging array. When using horizontal mirror mode, the user must retrigger column

correction. Please refer to the column correction section to see the procedure for

column correction retriggering.

G0[1

1:0] R0[11:0] G1[11:0] R1[11:0] G2[11:0] R2[11:0]

G3[11:0] R3[11:0] G2[11:0] R2[11:0] G1[11:0] R1[11:0]

DOUT[11:0]

Normal readout

DOUT[11:0]

Reverse readout

G3[11:0] R3[11:0]

G0[11:0] R0[11:0]

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

Figure 14: Six Rows in Normal and Row Mirror Readout Modes

Maintaining a Constant Frame Rate

Maintaining a constant frame rate while continuing to have the ability to adjust certain

parameters is the desired scenario. This is not always possible, however, because register

updates are synchronized to the read pointer, and the shutter pointer for a frame is

usually active during the readout of the previous frame. Therefore, any register changes

that could affect the row time or the set of rows sampled causes the shutter pointer to

start over at the beginning of the next frame.

By default, the following register fields cause a “bubble” in the output rate (that is, the

vertical blank increases for one frame) if they are written in video mode, even if the new

value would not change the resulting frame rate. The following list shows only a few

examples of such registers; a full listing can be seen in the MT9M034 Register Reference.

•x_addr_start

• x_addr_end

• y_addr_start

• y_addr_end

• frame_length_lines

• line_length_pclk

• coarse_integration_time

• fine_integration_time

•read_mode

The size of this bubble is (Integration_Time × tROW ), calculating the row time according

to the new settings.

The Coarse_Integration_Time and Fine_Integration_Time fields may be written to

without causing a bubble in the output rate under certain circumstances. Because the

shutter sequence for the next frame often is active during the output of the current

frame, this would not be possible without special provisions in the hardware. Writes to

these registers take effect two frames after the frame they are written, which allows the

integration time to increase without interrupting the output or producing a corrupt

frame (as long as the change in integration time does not affect the frame time).

Synchronizing Register Writes to Frame Boundaries

Changes to most register fields that affect the size or brightness of an image take effect

on two frames after the one during which they are written. These fields are noted as

“synchronized to frame boundaries” in the MT9M034 Register Reference. To ensure that

a register update takes effect on the next frame, the write operation must be completed

after the leading edge of FV and before the trailing edge of FV.

Row0 [11:0] Row1 [11:0] Row2 [11:0] Row3 [11:0] Row4 [11:0] Row5 [11:0]

Row5 [11:0] Row4[11:0] Row3 [11:0] Row2[11:0] Row1 [11:0] Row0[11:0]

OUT

[11:0]

Normal readout

OUT

[11:0]

Reverse readout

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

As a special case, in single frame mode, register writes that occur after FV but before the

next trigger will take effect immediately on the next frame, as if there had been a Restart.

However, if the trigger for the next frame occurs during FV, register writes take effect as

with video mode.

Fields not identified as being frame-synchronized are updated immediately after the

to predict if they affect the shutter pointer.

Restart

To restart the MT9M034 at any time during the operation of the sensor, write a “1” to the

Restart register (R0x301A[1] = 1). This has two effects: first, the current frame is inter-

rupted immediately. Second, any writes to frame-synchronized registers and the shutter

width registers take effect immediately, and a new frame starts (in video mode). The

current row completes before the new frame is started, so the time between issuing the

Restart and the beginning of the next frame can vary by about tROW.

Image Acquisition Modes

The MT9M034 supports two image acquisition modes: video(master) and single frame.

Video

The video mode takes pictures by scanning the rows of the sensor twice. On the first

scan, each row is released from reset, starting the exposure. On the second scan, the row

is sampled, processed, and returned to the reset state. The exposure for any row is there-

fore the time between the first and second scans. Each row is exposed for the same dura-

tion, but at slightly different point in time, which can cause a shear in moving subjects as

is typical with electronic rolling shutter sensors.

Single Frame

The single-frame mode operates similar to the video mode. It also scans the rows of the

sensor twice, first to reset the rows and second to read the rows. Unlike video mode

where a continuous stream of images are output from the image sensor, the single-frame

mode outputs a single frame in response to a high state placed on the TRIGGER input

pin. As long as the TRIGGER pin is held in a high state, new images will be read out. After

the TRIGGER pin is returned to a low state, the image sensor will not output any new

images and will wait for the next high state on the TRIGGER pin.

The TRIGGER pin state is detected during the vertical blanking period (i.e. the FV signal

is low). The pin is level sensitive rather than edge sensitive. As such, image integration

will only begin when the sensor detects that the TRIGGER pin has been held high for 3

consecutive clock cycles. If the trigger signal is applied to multiple sensors at the same

time, the single frame output of the sensors will be synchronized to within 1 PIXCLK if is

PLL disabled or 2 PIXCLKs if PLL is enabled.

During integration time of single-frame mode and video mode, the FLASH output pin is

at high.

Continuous Trigger

In certain applications, multiple sensors need to have their video streams synchronized

(E.g. surround view or panorama view applications). The TRIGGER pin can also be used

to synchronize output of multiple image sensors together and still get a video stream.

This is called continuous trigger mode. Continuous trigger is enabled by holding the

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

TRIGGER pin high. Alternatively, the TRIGGER pin can be held high until the stream bit

is enabled (R0x301A[2]=1) then can be released for continuous synchronized video

streaming.

If the TRIGGER pins for all connected MT9M034 sensors are connected to the same

control signal, all sensors will receive the trigger pulse at the same time. If they are

configured to have the same frame timing, then the usage of the TRIGGER pin guaran-

tees that all sensors will be synchronized within 1 PIXCLK cycle if PLL is disabled, or 2

PIXCLK cycles if PLL is enabled.

With continuous trigger mode, the application can now make use of the video streaming

mode while guaranteeing that all sensor outputs are synchronized. As long as the initial

trigger for the sensors takes place at the same time, all subsequent video streams will be

synchronous.

Temperature Sensor

The MT9M034 sensor has a built-in PTAT-based temperature sensor, accessible through

registers, that is capable of measuring die junction temperature.

The temperature sensor can be enabled by writing R0x30B4[0]=1 and R0x30B4[4]=1.

After this, the temperature sensor output value can be read from R0x30B2[10:0].

The value read out from the temperature sensor register is an ADC output value that

needs to be converted downstream to a final temperature value in degrees Celsius. Since

the PTAT device characteristic response is quite linear in the temperature range of oper-

ation required, a simple linear function in the format of listed in the equation below can

be used to convert the ADC output value to the final temperature in degrees Celsius.

(EQ 5)

For this conversion, a minimum of 2 known points are needed to construct the line

formula by identifying the slope and y-intercept "T0". These calibration values can be

read from registers R0x30C6 and R0x30C8 which correspond to value read at 70°C and

55°C respectively. Once read, the slope and y-intercept values can be calculated and

used in the above equation.

For more information on the temperature sensor registers, refer to the MT9M034

Temperature slope R0x30B2 10:0T+



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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

Automatic Exposure Control

The integrated automatic exposure control (AEC) is responsible for ensuring that

optimal settings of exposure and gain are computed and updated every other frame.

AEC can be enabled or disabled by R0x3100[0].

When AEC is disabled (R0x3100[0] = 0), the sensor uses the manual exposure value in

coarse and fine shutter width registers and the manual gain value in the gain registers.

When AEC is enabled (R0x3100[0]=1), the target luma value in linear mode is set by

R0x3102. For the MT9M034 this target luma has a default value of 0x0800 or about half

scale. For HDR mode, the luma target maximum auto exposure value is limited by

R0x311C; the minimum auto exposure is limited by R0x311E. These values are in units of

line-times.

The exposure control measures current scene luminosity by accumulating a histogram

of pixel values while reading out a frame. It then compares the current luminosity to the

desired output luminosity. Finally, the appropriate adjustments are made to the expo-

sure time and gain. All pixels are used, regardless of color or mono mode. In HDR mode,

the coarse and fine integration time is the longest integration time of the three integra-

tion, the other two shorter integration are generated automatically base on the pre-

defined exposure ratios. When using non-default HDR exposure ratios, auto_dg_en

should not be enabled (R0x3100[4] = 0) due to required digital gains as documented in

Table 9, “Digital Gain Setting for Each T1/T2 and T2/T3Ratio,” on page 20.

Embedded Data and Statistics

The MT9M034 has the capability to output image data and statistics embedded within

the frame timing. There are 2 types of information embedded within the frame readout:

1. Embedded Data: If enabled, these are displayed on the 2 rows immediately before the

first active pixel row is displayed.

2. Embedded Statistics: If enabled, these are displayed on the 2 rows immediately after

the last active pixel row is displayed.

Note: Embedded data and embedded statistics must be enabled or disabled together.

Figure 15: Frame Format with Embedded Data Lines Enabled

Image

Status & Statistics Data

HBlank

VBlank

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

Embedded Data

The embedded data contains the configuration of the image being displayed. This

includes all register settings used to capture the current frame. The registers embedded

in these rows are as follows:

Line 1: Registers R0x3000 to R0x312F

Line 2: Registers R0x3136 to R0x31BF, R0x31D0 to R0x31FF

Note: All non-defined registers will have a value of 0.

In parallel mode, since the pixel word depth is 12-bits/pixel, the sensor 16-bit register

data will be transferred over 2 pixels where the register data will be broken up into 8msb

and 8lsb. The alignment of the 8bit data will be on the 8MSB bits of the 12-bit pixel word.

For example, if a register value of 0x1234 is to be transmitted, it will be transmitted over

2, 12-bit pixels as follows: 0x120, 0x340.

The first pixel of each line in the embedded data is a tag value of 0x0A0. This signifies

that all subsequent data is 8 bit data aligned to the MSB of the 12-bit pixel.

The figure below summarizes how the embedded data transmission looks like. It should

be noted that data, as shown in Figure 16, is aligned to the MSB of each word:

Figure 16: Format of Embedded Data Output within a Frame

The data embedded in these rows are as follows:

•0x0A0 - identifier

• 0xAA0

• Register Address MSB of the first register

•0xA50

• Register Address LSB of the first register

•0x5A0

• Register Value MSB of the first register addressed

•0x5A0

• Register Value LSB of the first register addressed

•0x5A0

• Register Value MSB of the register at first address + 2

•0x5A0

• Register Value LSB of the register at first address + 2

•0x5A0

•etc.

{register_

value_LSB} 8'h5A

Data line 1

Data line 2

8'h5A

8'hAA {register_

address_MSB} 8'hA5 {register_

address_LSB} 8'h5A {register_

value_MSB} 8'h5A

{register_

value_LSB}

data_format_

code =8'h0A

8'hAA

{register_

address_MSB} 8'hA5 {register_

address_LSB} 8'h5A {register_

value_MSB} 8'h5A

data_format_

code =8'h0A

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

Embedded Statistics

The embedded statistics contain frame identifiers and histogram information of the

image in the frame. This can be used by downstream auto-exposure algorithm blocks to

make decisions about exposure adjustment.

This histogram is divided into 244 bins with a bin spacing of 64 evenly spaced bins for

digital code values 0 to 212, 120 evenly spaced bins for values 212 to 216, 60 evenly spaced

bins for values 216 to 220. In HDR with a 16x exposure ratio, this approximately corre-

sponds to the T1, T2, T3 exposures respectively.

The first pixel of each line in the embedded statistics is a tag value of 0x0B0. This signi-

fies that all subsequent statistics data is 10 bit data aligned to the MSB of the 12-bit pixel.

The figure below summarizes how the embedded statistics transmission looks like. It

should be noted that data, as shown in Figure 17, is aligned to the msb of each word:

Figure 17: Format of Embedded Statistics Output within a Frame

The statistics embedded in these rows are as follows:

Line 1:

• 0x0B0 - (identifier)

• Register 0x303A - frame_count

• Register 0x31D2 - frame ID

• Histogram data - histogram bins 0-243

Line 2:

•0x0B0 (identifier)

•Mean

•Histogram Begin

•Histogram End

•Low End Histogram Mean

• Percentage of Pixels Below Low End Mean

• Normal Absolute Deviation

Gain

Digital Gain

Digital gain can be controlled globally by R0x305E (Context A) or R0x30C4 (Context B).

There are also registers that allow individual control over each Bayer color (GreenR,

GreenB, Red, Blue).

{2'b00,frame

_count MSB}

{2'b00,frame

_count LSB}

{2'b00,frame

_ID MSB}

{2'b00,frame

_ID LSB}

histogram

bin0 [19:10]

histogram

bin0 [9:0]

histogram

bin1 [19:10]

histogram

bin1 [9:0]

# words =

10'h1EC

data_format_

code = 8'h0B

histogram

bin243 [19:10]

histogram

bin243 [9:0]

# words =

10'h00C

data_format_

code = 8'h0B

mean

[19:10]

mean

[9:0]

histBegin

[19:10]

histBegin

[9:0]

histEnd

[19:10]

histEnd

[9:0]

lowEndMean

[19:10]

lowEndMean

[9:0]

perc_lowEnd

[19:10]

perc_lowEnd

[9:0]

norm_abs_

dev [19:10]

norm_abs_

dev [9:0]

8'h07 8'h07

8'h07

stats line 1

stats line 2

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

The format for digital gain setting is xxx.yyyyy where 0b00100000 represents a 1x gain

setting and 0b00110000 represents a 1.5x gain setting. The step size for yyyyy is 0.03125

while the step size for xxx is 1. Therefore to set a gain of 2.09375 one would set digital

gain to 01000011.

Analog Gain

The MT9M034 has a column parallel architecture and therefore has an Analog gain stage

per column.

There are 2 stages of analog gain, the first stage can be set to 1x, 2x, 4x or 8x. This can be

set in R0x30B0[5:4](Context A) or R0x30B0[9:8] (Context B). The second stage is capable

of setting an additional 1x or 1.25x gain which can be set in R0x3EE4[9:8].

This allows the maximum possible analog gain to be set to 10x.

Black Level Correction

Black level correction is handled automatically by the image sensor. No adjustments are

provided except to enable or disable this feature. Setting R0x30EA[15] disables the auto-

matic black level correction. Default setting is for automatic black level calibration to be

enabled.

The automatic black level correction measures the average value of pixels from a set of

optically black lines in the image sensor. The pixels are averaged as if they were light-

sensitive and passed through the appropriate gain. This line average is then digitally

low-pass filtered over many frames to remove temporal noise and random instabilities

associated with this measurement. The new filtered average is then compared to a

minimum acceptable level, low threshold, and a maximum acceptable level, high

threshold. If the average is lower than the minimum acceptable level, the offset correc-

tion value is increased by a predetermined amount. If it is above the maximum level, the

offset correction value is decreased by a predetermined amount. The high and low

thresholds have been calculated to avoid oscillation of the black level from below to

above the targeted black level.

Row-wise Noise Correction

Row (Line)-wise Noise Correction is handled automatically by the image sensor. No

adjustments are provided except to enable or disable this feature. Clearing R0x3044[10]

disables the row noise correction. Default setting is for row noise correction to be

enabled.

Row-wise noise correction is performed by calculating an average from a set of optically

black pixels at the start of each line and then applying each average to all the active

pixels of the line.

Column Correction

The MT9M034 uses column parallel readout architecture to achieve fast frame rate.

Without any corrections, the consequence of this architecture is that different column

signal paths have slightly different offsets that might show up on the final image as

structured fixed pattern noise.

MT9M034 has column correction circuitry that measures this offset and removes it from

the image before output. This is done by sampling dark rows containing tied pixels and

measuring an offset coefficient per column to be corrected later in the signal path.

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

Column correction can be enabled/disabled via R0x30D4[15]. Additionally, the number

of rows used for this offset coefficient measurement is set in R0x30D4[3:0]. By default

this register is set to 0x7, which means that 8 rows are used. This is the recommended

value. Other control features regarding column correction can be viewed in the

MT9M034 Register reference. Any changes to column correction settings need to be

done when the sensor streaming is disabled and the appropriate triggering sequence

must be followed as described below.

Column Correction Triggering

Column correction requires a special procedure to trigger depending on which state the

sensor is in.

Column Triggering on Startup

When streaming the sensor for the first time after powerup, a special sequence needs to

be followed to make sure that the column correction coefficients are internally calcu-

lated properly.

1. Follow proper power up sequence for power supplies and clocks.

2. Apply sequencer settings if needed (Linear or HDR mode).

3. Apply frame timing and PLL settings as required by application.

4. Set analog gain to 1x and low conversion gain (R0x30B0=0x1300)

5. Enable column correction and settings (R0x30D4=0xE007).

6. Disable auto re-trigger for change in conversion gain or col_gain, and enable column

correction always (R0x30BA = 0x0008).

7. Enable streaming (R0x301A[2]=1)or drive the TRIGGER pin HIGH.

8. Wait 9 frames to settle (First frame after coming up from standby is internally column

correction disabled).

9. Disable streaming (R0x301A[2]=0).

After this, the sensor has calculated the proper column correction coefficients and the

sensor is ready for streaming. Any other settings (including gain, integration time and

conversion gain etc.) can be done afterwards without affecting column correction.

Column Correction Retriggering Due to Mode Change

Since column offsets is sensitive to changes in the analog signal path, such changes

require column correction circuitry to be retriggered for the new path. Examples of such

mode changes include: horizontal mirror, vertical mirror, changes to column correction

settings.

When such changes take place, the following sequence needs to take place:

1. Disable streaming (R0x301A[2]=0) or drive the TRIGGER pin LOW.

2. Enable streaming (R0x301A[2]=1) or drive the TRIGGER pin HIGH.

3. Wait 9 frames to settle.

Note: The above steps are not needed if the sensor is being reset (soft or hard reset) upon

the mode change.

Defective Pixel Correction

Defective Pixel Correction is intended to compensate for defective pixels by replacing

their value with a value based on the surrounding pixels, making the defect less notice-

able to the human eye. The defect pixel correction feature supports up to 200 defects.

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Features

The locations of defective pixels are stored in a table on chip during the manufacturing

process; this table is accessible through the two-wire serial interface. There is no provi-

sion for later augmenting the defect table entries.

The DPC algorithm is one-dimensional, calculating the resulting averaged pixel value

based on nearby pixels within a row. The algorithm distinguishes between color and

monochrome parts; for color parts, the algorithm uses nearest neighbor in the same

color plane.

At high gain, long exposure, and high temperature conditions, the performance of this

function can degrade.

Test Patterns

The MT9M034 has the capability of injecting a number of test patterns into the top of

the datapath to debug the digital logic. With one of the test patterns activated, any of the

datapath functions can be enabled to exercise it in a deterministic fashion. Test patterns

are selected by Test_Pattern_Mode register (R0x3070). Only one of the test patterns can

be enabled at a given point in time by setting the Test_Pattern_Mode register according

to Table 11. When test patterns are enabled the active area will receive the value speci-

fied by the selected test pattern and the dark pixels will receive the value in Test_Pat-

tern_Green (R0x3074 and R0x3078) for green pixels, Test_Pattern_Blue (R0x3076) for

blue pixels, and Test_Pattern_Red (R0x3072) for red pixels.

Note: Turn off black level calibration (BLC) when Test Pattern is enabled.

Color Field

When the color field mode is selected, the value for each pixel is determined by its color.

Green pixels will receive the value in Test_Pattern_Green, red pixels will receive the value

in Test_Pattern_Red, and blue pixels will receive the value in Test_Pattern_Blue.

Vertical Color Bars

When the vertical color bars mode is selected, a typical color bar pattern will be sent

through the digital pipeline.

Walking 1s

When the walking 1s mode is selected, a walking 1s pattern will be sent through the

digital pipeline. The first value in each row is 1.

Table 11: Test Pattern Modes

Test_Pattern_Mode Test Pattern Output

0 No test pattern (normal operation)

1 Solid color test pattern

2 100% color bar test pattern

3 Fade-to-gray color bar test pattern

256 Walking 1s test pattern (12-bit)

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Two-Wire Serial Register Interface

The two-wire serial interface bus enables read/write access to control and status regis-

ters within the MT9M034.The interface protocol uses a master/slave model in which a

master controls one or more slave devices. The sensor acts as a slave device. The master

generates a clock (SCLK) that is an input to the sensor and is used to synchronize trans-

fers. Data is transferred between the master and the slave on a bidirectional signal

(SDATA). SDATA is pulled up to VDD_IO off-chip by a 1.5k resistor. Either the slave or

master device can drive SDATA LOW—the interface protocol determines which device is

allowed to drive SDATA at any given time.

The protocols described in the two-wire serial interface specification allow the slave

device to drive SCLKLOW; the MT9M034 uses SCLK as an input only and therefore never

drives it LOW.

Protocol

Data transfers on the two-wire serial interface bus are performed by a sequence of low-

level protocol elements:

1. a (repeated) start condition

2. a slave address/data direction byte

3. an (a no) acknowledge bit

4. a message byte

5. a stop condition

The bus is idle when both SCLK and SDATA are HIGH. Control of the bus is initiated with a

start condition, and the bus is released with a stop condition. Only the master can

generate the start and stop conditions.

Start Condition

A start condition is defined as a HIGH-to-LOW transition on SDATA while SCLK is HIGH.

At the end of a transfer, the master can generate a start condition without previously

generating a stop condition; this is known as a “repeated start” or “restart” condition.

Stop Condition

A stop condition is defined as a LOW-to-HIGH transition on SDATA while SCLK is HIGH.

Data Transfer

Data is transferred serially, 8 bits at a time, with the MSB transmitted first. Each byte of

data is followed by an acknowledge bit or a no-acknowledge bit. This data transfer

mechanism is used for the slave address/data direction byte and for message bytes.

One data bit is transferred during each SCLK clock period. SDATA can change when SCLK

is LOW and must be stable while SCLK is HIGH.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Two-Wire Serial Register Interface

Slave Address/Data Direction Byte

Bits [7:1] of this byte represent the device slave address and bit [0] indicates the data

transfer direction. A “0” in bit [0] indicates a WRITE, and a “1” indicates a READ. The

default slave addresses used by the MT9M034 are 0x20 (write address) and 0x21 (read

address) in accordance with the specification. Alternate slave addresses of 0x30 (write

address) and 0x31 (read address) can be selected by enabling and asserting the SADDR

input.

An alternate slave address can also be programmed through R0x31FC.

Message Byte

Message bytes are used for sending register addresses and register write data to the slave

device and for retrieving register read data.

Acknowledge Bit

Each 8-bit data transfer is followed by an acknowledge bit or a no-acknowledge bit in the

SCLK clock period following the data transfer. The transmitter (which is the master when

writing, or the slave when reading) releases SDATA. The receiver indicates an acknowl-

edge bit by driving SDATA LOW. As for data transfers, SDATA can change when SCLK is

LOW and must be stable while SCLK is HIGH.

No-Acknowledge Bit

The no-acknowledge bit is generated when the receiver does not drive SDATA LOW

during the SCLK clock period following a data transfer. A no-acknowledge bit is used to

terminate a read sequence.

Typical Sequence

A typical READ or WRITE sequence begins by the master generating a start condition on

the bus. After the start condition, the master sends the 8-bit slave address/data direction

byte. The last bit indicates whether the request is for a read or a write, where a “0” indi-

cates a write and a “1” indicates a read. If the address matches the address of the slave

device, the slave device acknowledges receipt of the address by generating an acknowl-

edge bit on the bus.

If the request was a WRITE, the master then transfers the 16-bit register address to which

the WRITE should take place. This transfer takes place as two 8-bit sequences and the

slave sends an acknowledge bit after each sequence to indicate that the byte has been

received. The master then transfers the data as an 8-bit sequence; the slave sends an

acknowledge bit at the end of the sequence. The master stops writing by generating a

(re)start or stop condition.

If the request was a READ, the master sends the 8-bit write slave address/data direction

byte and 16-bit register address, the same way as with a WRITE request. The master then

generates a (re)start condition and the 8-bit read slave address/data direction byte, and

clocks out the register data, eight bits at a time. The master generates an acknowledge

bit after each 8-bit transfer. The slave’s internal register address is automatically incre-

mented after every 8 bits are transferred. The data transfer is stopped when the master

sends a no-acknowledge bit.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Two-Wire Serial Register Interface

Single READ from Random Location

This sequence (Figure 18) starts with a dummy WRITE to the 16-bit address that is to be

used for the READ. The master terminates the WRITE by generating a restart condition.

The master then sends the 8-bit read slave address/data direction byte and clocks out

one byte of register data. The master terminates the READ by generating a no-acknowl-

edge bit followed by a stop condition. Figure 18 shows how the internal register address

maintained by the MT9M034 is loaded and incremented as the sequence proceeds.

Figure 18: Single READ from Random Location

Single READ from Current Location

This sequence (Figure 19) performs a read using the current value of the MT9M034

internal register address. The master terminates the READ by generating a no-acknowl-

edge bit followed by a stop condition. The figure shows two independent READ

sequences.

Figure 19: Single READ from Current Location

Sequential READ, Start from Random Location

This sequence (Figure 20) starts in the same way as the single READ from random loca-

tion (Figure 18). Instead of generating a no-acknowledge bit after the first byte of data

has been transferred, the master generates an acknowledge bit and continues to

perform byte READs until “L” bytes have been read.

Figure 20: Sequential READ, Start from Random Location

S = start condition

P = stop condition

Sr = restart condition

A = acknowledge

A = no-acknowledge

slave to master

master to slave

Slave Address 0

S A Reg Address[15:8] A Reg Address[7:0] Slave Address AA 1Sr Read Data P

Previous Reg Address, N Reg Address, M M+

Slave Address 1S A Read Data Slave Address A1SP Read Data P

Previous Reg Address, N Reg Address, N+1 N+2

Slave Address 0

S Sr

AReg Address[15:8]

Read Data Read Data

AReg Address[7:0] ARead DataSlave Address

Previous Reg Address, N Reg Address, M

M+1 M+2

M+1

M+3

Read Data Read Data

M+L-2 M+L-1 M+L

AAA

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Two-Wire Serial Register Interface

Sequential READ, Start from Current Location

This sequence (Figure 21) starts in the same way as the single READ from current loca-

tion (Figure 19). Instead of generating a no-acknowledge bit after the first byte of data

has been transferred, the master generates an acknowledge bit and continues to

perform byte READs until “L” bytes have been read.

Figure 21: Sequential READ, Start from Current Location

Single WRITE to Random Location

This sequence (Figure 22) begins with the master generating a start condition. The slave

address/data direction byte signals a WRITE and is followed by the HIGH then LOW

bytes of the register address that is to be written. The master follows this with the byte of

write data. The WRITE is terminated by the master generating a stop condition.

Figure 22: Single WRITE to Random Location

Sequential WRITE, Start at Random Location

This sequence (Figure 23) starts in the same way as the single WRITE to random location

(Figure 22). Instead of generating a no-acknowledge bit after the first byte of data has

been transferred, the master generates an acknowledge bit and continues to perform

byte WRITEs until “L” bytes have been written. The WRITE is terminated by the master

generating a stop condition.

Figure 23: Sequential WRITE, Start at Random Location

Read Data Read Data

Previous Reg Address, N N+1 N+2 N+L-1 N+L

Read DataSlave Address A1 Read Data A PS A A A

Slave Address 0

SAReg Address[15:8] AReg Address[7:0] AP

Previous Reg Address, N Reg Address, M M+

Write Data

Slave Address 0

SAReg Address[15:8]

AReg Address[7:0] A

Previous Reg Address, N Reg Address, M

M+1 M+2

M+1

M+3

M+L-2 M+L-1 M+L

Write Data

Write Data Write Data Write DataWrite Data

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Spectral Characteristics

Figure 24: Quantum Efficiency – Color Sensor

red green blue

350

Wavelength (nm)

Quantum Efficiency (%)

400 450 500 550 600 650 700 750 800 850 900 950 1000 1050

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Spectral Characteristics

Figure 25: Estimated Quantum Efficiency – Monochrome Sensor

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Electrical Specifications

Unless otherwise stated, the following specifications apply to the following conditions:

VDD = 1.8V – 0.10/+0.15; VDD_IO = VDD_PLL = VAA = VAA_PIX = 2.8V ± 0.3V;

TA = -30°C to +70°C; output load = 10pF;

frequency = 74.25 MHz.

Two-Wire Serial Register Interface

The electrical characteristics of the two-wire serial register interface (SCLK, SDATA) are

shown in Figure 26 and Table 12.

Figure 26: Two-Wire Serial Bus Timing Parameters

Note: Read sequence: For an 8-bit READ, read waveforms start after WRITE command and register

address are issued.

Table 12: Two-Wire Serial Bus Characteristics

fEXTCLK = 27 MHz; VDD = 1.8V; VDD_IO = 2.8V; VAA = 2.8V; VAA_PIX = 2.8V;

VDD_PLL = 2.8V; VDD_DAC = 2.8V; TA = 25°C

Parameter Symbol

Standard-Mode Fast-Mode

UnitMin Max Min Max

SCLK Clock Frequency fSCL 0 100 0 400 KHz

Hold time (repeated) START condition.

After this period, the first clock pulse is

generated

tHD;STA 4.0 - 0.6 - S

LOW period of the SCLK clock tLOW 4.7 - 1.3 - S

HIGH period of the SCLK clock tHIGH 4.0 - 0.6 - S

Set-up time for a repeated START

condition

tSU;STA 4.7 - 0.6 - S

Data hold time: tHD;DAT 043.455060.95S

Data set-up time tSU;DAT 250 - 1006-nS

SSr

tSU;STO

tSU;STA

tHD;STA tHIGH

tLOW tSU;DAT

tHD;DAT

SDATA

SCLK

tBUF

trtHD;STA

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Electrical Specifications

Notes: 1. This table is based on I2C standard (v2.1 January 2000). Philips Semiconductor.

2. Two-wire control is I2C-compatible.

3. All values referred to VIHmin = 0.9 VDD and VILmax = 0.1VDD levels. Sensor EXCLK = 27 MHz.

4. A device must internally provide a hold time of at least 300 ns for the SDATA signal to bridge the

undefined region of the falling edge of SCLK.

5. The maximum tHD;DAT has only to be met if the device does not stretch the LOW period (tLOW) of

the SCLK signal.

6. A Fast-mode I2C-bus device can be used in a Standard-mode I2C-bus system, but the requirement

tSU;DAT 250 ns must then be met. This will automatically be the case if the device does not stretch

the LOW period of the SCLK signal. If such a device does stretch the LOW period of the SCLK signal, it

must output the next data bit to the SDATA line tr max + tSU;DAT = 1000 + 250 = 1250 ns (according

to the Standard-mode I2C-bus specification) before the SCLK line is released.

7. Cb = total capacitance of one bus line in pF.

I/O Timing

By default, the MT9M034 launches pixel data, FV, and LV with the falling edge of PIXCLK.

The expectation is that the user captures DOUT[11:0], FV, and LV using the rising edge of

PIXCLK. This can be changed using register R0x3028.

See Figure 27 and Table 13 for I/O timing (AC) characteristics.

Rise time of both SDATA and SCLK signals tr - 1000 20 + 0.1Cb7300 nS

Fall time of both SDATA and SCLK signals tf - 300 20 + 0.1Cb7300 nS

Set-up time for STOP condition tSU;STO 4.0 - 0.6 - S

Bus free time between a STOP and START

condition

tBUF 4.7 - 1.3 - S

Capacitive load for each bus line Cb - 400 - 400 pF

Serial interface input pin capacitance CIN_SI - 3.3 - 3.3 pF

SDATA max load capacitance CLOAD_SD - 30 - 30 pF

SDATA pull-up resistor RSD 1.5 4.7 1.5 4.7 K

Table 12: Two-Wire Serial Bus Characteristics

fEXTCLK = 27 MHz; VDD = 1.8V; VDD_IO = 2.8V; VAA = 2.8V; VAA_PIX = 2.8V;

VDD_PLL = 2.8V; VDD_DAC = 2.8V; TA = 25°C

Parameter Symbol

Standard-Mode Fast-Mode

UnitMin Max Min Max

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Electrical Specifications

Figure 27: I/O Timing Diagram

Notes: 1. Minimum and maximum values are taken at the temperature and voltage limits; for instance, 70°C

at 2.5V, and -30°C at 3.1V. All values are taken at the 50% transition point. The loading used is 10pF.

2. Jitter from PIXCLK is already taken into account as the data of all the output parameters.

Table 13: I/O Timing Characteristics (2.8V VDD_IO)1

Symbol Definition Condition Min Typ Max Unit

fEXTCLK Input clock frequency 6 – 50 MHz

tEXTCLK Input clock period 20 – 166 ns

tR Input clock rise time – 3 – ns

tF Input clock fall time – 3 – ns

tJITTER Input clock jitter – – 600 ps

tRP Pixclk rise time PCLK slew rate = 6 1.2 – 2.9 ns

tFP Pixclk fall time PCLK slew rate = 6 1.2 – 2.9 ns

Pixclk duty cycle 45 50 55 %

fPIXCLK PIXCLK frequency26 – 74.25 MHz

tPD PIXCLK to data valid PCLK slew rate = 6,

Parallel slew rate = 7

–2 – 2.5 ns

tPFH PIXCLK to FV HIGH PCLK slew rate = 6,

Parallel slew rate = 7

–2 – 2.5 ns

tPLH PIXCLK to LV HIGH PCLK slew rate = 6,

Parallel slew rate = 7

–2 – 2.5 ns

tPFL PIXCLK to FV LOW PCLK slew rate = 6,

Parallel slew rate = 7

–2 – 2.5 ns

tPLL PIXCLK to LV LOW PCLK slew rate = 6,

Parallel slew rate = 7

–2 – 2.5 ns

Data[11:0]

LINE_VALID/

PIXCLK

EXTCLK

tEXTCLK

FRAME_VALID leads LINE_VALID by 6 PIXCLKs.

FRAME_VALID trails

LINE_VALID by 6 PIXCLKs.

tPLH

tPFH

tPFL

tPLL

tPD

Pxl_0 Pxl _1 Pxl _2 Pxl_n

90%

10%

tRP tFP

90%

10%

FRAME_VALID

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Electrical Specifications

Notes: 1. Minimum and maximum values are taken at the temperature and voltage limits; for instance, 70°C

at 1.7V, and -30°C at 1.95V. All values are taken at the 50% transition point. The loading used is

10pF.

2. Jitter from PIXCLK is already taken into account as the data of all the output parameters.

Notes: 1. Minimum and maximum values are taken at the temperature and voltage limits; for instance, 70°C

at 2.5V, and -30°C at 3.1V. The loading used is 10pF.

Table 14: I/O Timing Characteristics (1.8V VDD_IO)1

Symbol Definition Condition Min Typ Max Unit

fEXTCLK Input clock frequency 6-50MHz

tEXTCLK Input clock period 20 - 166 ns

tRInput clock rise time -3-ns

tFInput clock fall time -3-ns

tJITTER Input clock jitter – – 600 ps

tRP Pixel rise time PCLK slew rate = 6 1.8 - 4.8 ns

tFP Pixel fall time PCLK slew rate = 6 1.7 - 4.5 ns

Pixel duty cycle 45 50 55 %

fPIXCLK PIXCLK frequency2674.25MHz

tPD PIXCLK to data valid PCLK slew rate = 6,

Parallel slew rate = 7

–2.5 – 2 ns

tPFH PIXCLK to FV HIGH PCLK slew rate = 6,

Parallel slew rate = 7

–2.5 – 2 ns

tPLH PIXCLK to LV HIGH PCLK slew rate = 6,

Parallel slew rate = 7

–2.5 – 2 ns

tPFL PIXCLK to FV LOW PCLK slew rate = 6,

Parallel slew rate = 7

–2.5 – 2 ns

tPLL PIXCLK to LV LOW PCLK slew rate = 6,

Parallel slew rate = 7

–2.5 – 2 ns

Table 15: I/O Rise Slew Rate (2.8V VDD_IO)1

Parallel Slew Rate

(R0x306E[15:13]) Conditions Min Typ Max Units

7 Default 1.08 1.77 2.72 V/ns

6 Default 0.77 1.26 1.94 V/ns

5 Default 0.58 0.95 1.46 V/ns

4 Default 0.44 0.70 1.08 V/ns

3 Default 0.32 0.51 0.78 V/ns

2 Default 0.23 0.37 0.56 V/ns

1 Default 0.16 0.25 0.38 V/ns

0 Default 0.10 0.15 0.22 V/ns

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Electrical Specifications

Notes: 1. Minimum and maximum values are taken at the temperature and voltage limits; for instance, 70°C

at 2.5V, and -30°C at 3.1V. The loading used is 10pF.

Notes: 1. Minimum and maximum values are taken at the temperature and voltage limits; for instance, 70°C

at 1.7V, and -30°C at 1.95V. The loading used is 10pF.

Notes: 1. Minimum and maximum values are taken at the temperature and voltage limits; for instance, 70°C

at 1.7V, and -30°C at 1.95V. The loading used is 10pF.

Table 16: I/O Fall Slew Rate (2.8V VDD_IO)1

Parallel Slew Rate

(R0x306E[15:13]) Conditions Min Typ Max Units

7 Default 1.00 1.62 2.41 V/ns

6 Default 0.76 1.24 1.88 V/ns

5 Default 0.60 0.98 1.50 V/ns

4 Default 0.46 0.75 1.16 V/ns

3 Default 0.35 0.56 0.86 V/ns

2 Default 0.25 0.40 0.61 V/ns

1 Default 0.17 0.27 0.41 V/ns

0 Default 0.11 0.16 0.24 V/ns

Table 17: I/O Rise Slew Rate (1.8V VDD_IO)1

Parallel Slew Rate

(R0x306E[15:13]) Conditions

Min Typ Max Units

7 Default 0.41 0.65 1.10 V/ns

6 Default 0.30 0.47 0.79 V/ns

5 Default 0.24 0.37 0.61 V/ns

4 Default 0.19 0.28 0.46 V/ns

3 Default 0.14 0.21 0.34 V/ns

2 Default 0.10 0.15 0.24 V/ns

1 Default 0.07 0.10 0.16 V/ns

0 Default 0.04 0.06 0.10 V/ns

Table 18: I/O Fall Slew Rate (1.8V VDD_IO)1

Parallel Slew Rate

(R0x306E[15:13]) Conditions Min Typ Max Units

7 Default 0.42 0.68 1.11 V/ns

6 Default 0.32 0.51 0.84 V/ns

5 Default 0.26 0.41 0.67 V/ns

4 Default 0.20 0.32 0.52 V/ns

3 Default 0.16 0.24 0.39 V/ns

2 Default 0.12 0.18 0.28 V/ns

1 Default 0.08 0.12 0.19 V/ns

0 Default 0.05 0.07 0.11 V/ns

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Electrical Specifications

DC Electrical Characteristics

The DC electrical characteristics are shown in the tables below.

Table 19: DC Electrical Characteristics

Caution Stresses greater than those listed in Table 14 may cause permanent damage to the device.

This is a stress rating only, and functional operation of the device at these or any other con-

ditions above those indicated in the operational sections of this specification is not implied.

Notes: 1. Exposure to absolute maximum rating conditions for extended periods may affect reliability.

2. To keep dark current and shot noise artifacts from impacting image quality, keep operating tem-

perature at a minimum.

Symbol Definition Condition Min Typ Max Unit

VDD Core digital voltage 1.7 1.8 1.95 V

VDD_IO I/O digital voltage 1.7/2.5 1.8/

2.8

1.9/3.1 V

VAA Analog voltage 2.5 2.8 3.1 V

VAA_PIX Pixel supply voltage 2.5 2.8 3.1 V

VDD_PLL PLL supply voltage 2.5 2.8 3.1 V

VIH Input HIGH voltage VDD_IO*0.7 – – V

VIL Input LOW voltage – – VDD_IO*0.3 V

IIN Input leakage current No pull-up resistor; VIN = VDD_IO or

DGND

––20A

VOH Output HIGH voltage VDD_IO-0.3 – – V

VOL Output LOW voltage – – 0.4 V

IOH Output HIGH current At specified VOH -22 – – mA

IOL Output LOW current At specified VOL ––22mA

Table 20: Absolute Maximum Ratings

Symbol Parameter Minimum Maximum Unit Symbol

VSUPPLY Power supply voltage (all supplies) –0.3 4.5 V VSUPPLY

ISUPPLY Total power supply current – 200 mA ISUPPLY

IGND Total ground current – 200 mA IGND

VIN DC input voltage –0.3 VDD_IO + 0.3 V VIN

VOUT DC output voltage –0.3 VDD_IO + 0.3 V VOUT

TSTG1Storage temperature –40 +150 °C TSTG1

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Electrical Specifications

Notes: 1. Operating currents are measured at the following conditions:

VAA = VAA_PIX = VDD_IO = VDD_PLL = 2.8V

VDD =1 .8V

PLL Enabled and PIXCLK = 74.25 Mhz

TA = 25°C

CLOAD = 10pF Measured in dark

Table 22: Operating Current Consumption in Parallel Output and HDR Mode

Notes: 1. Operating currents are measured at the following conditions:

VAA = VAA_PIX = VDD_IO = VDD_PLL = 2.8V

VDD = 1.8V

PLL Enabled and PIXCLK = 74.25 Mhz

TA= 25°C

CLOAD = 10pF Measured in dark

Table 21: Operating Current Consumption in Parallel Output and Linear Mode

Definition Condition Symbol Min Typ Max Unit

Digital operating current Streaming, 1280x960 45fps IDD1 – 63 90 mA

I/O digital operating current Streaming, 1280x960 45fps IDD_IO – 35 40 mA

Analog operating current Streaming, 1280x960 45fps IAA – 30 45 mA

Pixel supply current Streaming, 1280x960 45fps IAA_PIX – 10 15 mA

PLL supply current Streaming, 1280x960 45fps IDD_PLL – 7 15 mA

Digital operating current Streaming, 720p 60 fps IDD1 – 63 90 mA

I/O digital operating current Streaming, 720p 60 fps IDD_IO - 35 40 mA

Analog operating current Streaming, 720p 60 fps IAA – 30 45 mA

Pixel supply current Streaming, 720p 60 fps IAA_PIX – 10 15 mA

PLL supply current Streaming, 720p 60f ps IDD_PLL – 7 15 mA

Definition Condition Symbol Min Typ Max Unit

Digital operating current Streaming, 1280x960

45fps

IDD –95115 mA

I/O digital operating

current

Streaming, 1280x960

45fps

IDD_IO – 35 40 mA

Analog operating current Streaming, 1280x960

45fps

IAA – 65 75 mA

Pixel supply current Streaming, 1280x960

45fps

IAA_PIX – 15 20 mA

PLL supply current Streaming, 1280x960

45fps

IDD_PLL – 7 15 mA

Digital operating current Streaming, 720p 60 fps IDD –95115 mA

I/O digital operating

current Streaming, 720p 60 fps IDD_IO – 35 40 mA

Analog operating current Streaming, 720p 60 fps IAA – 61 75 mA

Pixel supply current Streaming, 720p 60 fps IAA_PIX – 15 20 mA

PLL supply current Streaming, 720p 60 fps IDD_PLL – 7 15 mA

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Electrical Specifications

Notes: 1. Analog – VAA + VAA_PIX + VDD_PLL

2. Digital – VDD + VDD_IO

Figure 28: Power Supply Rejection Ratio

Table 23: Standby Current Consumption

Definition Condition Symbol Min Typ Max Unit

Hard standby (clock off) Analog, 2.8V –– 30 100 μA

Digital, 1.8V – – 85 2500 μA

Hard standby (clock on) Analog, 2.8V – – 30 100 μA

Digital, 1.8V ––1.55 4 mA

Soft standby (clock off) Analog, 2.8V – – 85 100 μA

Digital, 1.8V – – 85 2500 μA

Soft standby (clock on) Analog, 2.8V – – 30 100 μA

Digital, 1.8V ––1.55 4 mA

1000 10000 100000 1000000



(

)

Frequency(Hz)

PowerSupplyRejectionRatio

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Power-On Reset and Standby Timing

Power-Up Sequence

The recommended power-up sequence for the MT9M034 is shown in Figure 29. The

available power supplies (VDD_IO, VDD, VDD_PLL, VAA, VAA_PIX) must have the separa-

tion specified below.

1. Turn on VDD_PLL power supply.

2. After 0–10s, turn on VAA and VAA_PIX power supply.

3. After 0–10s, turn on VDD_IO power supply.

4. After the last power supply is stable, enable EXTCLK.

5. Assert RESET_BAR for at least 1ms.

6. Wait 850000 EXTCLKs (for internal initialization into software standby).

7. Configure PLL, output, and image settings to desired values.

8. Wait 1ms for the PLL to lock.

9. Set streaming mode (R0x301A[2] = 1).

Figure 29: Power Up

VDD_PLL (2.8)

VAA_PIX

VAA (2.8)

VDD_IO (1.8/2.8)

VDD (1.8)

EXTCLK

RESET_BAR tx

t5 t6

Hard Reset Internal

Initialization

Software

Standby PLL Lock Streaming

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Power-On Reset and Standby Timing

Notes: 1. Xtal settling time is component-dependent, usually taking about 10 – 100 ms.

2. Hard reset time is the minimum time required after power rails are settled. In a circuit where Hard

reset is held down by RC circuit, then the RC time must include the all power rail settle time and

Xtal settle time.

3. It is critical that VDD_PLL is not powered up after the other power supplies. It must be powered

before or at least at the same time as the others. If the case happens that VDD_PLL is powered after

other supplies then sensor may have functionality issues and will experience high current draw on

this supply.

Table 24: Power-Up Sequence

Definition Symbol Minimum Typical Maximum Unit

VDD_PLL to VAA/VAA_PIX3t0 0 10 – s

VAA/VAA_PIX to VDD_IO t1 0 10 – s

VDD_IO to VDD t2 0 10 – s

Xtal settle time tx – 301–ms

Hard Reset t4 12–– ms

Internal Initialization t5 850000 – – EXTCLKS

PLL Lock Time t6 1 – – ms

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Power-On Reset and Standby Timing

Power-Down Sequence

The recommended power-down sequence for the MT9M034 is shown in Figure 30. The

available power supplies (VDD_IO, VDD, VDD_PLL, VAA, VAA_PIX) must have the separa-

tion specified below. Power may be removed from all supplies simultaneously, and a

sudden loss of power on all rails does not cause damage or affect the lifetime of the

device.

1. Disable streaming if output is active by setting standby R0x301A[2] = 0

2. The soft standby state is reached after the current row or frame, depending on config-

uration, has ended.

3. Turn off VDD.

4. Turn off VDD_IO

5. Turn off VAA/VAA_PIX.

6. Turn off VDD_PLL.

Figure 30: Power Down

Note: t4 is required between power down and next power up time; all decoupling caps from regulators

must be completely discharged.

Table 25: Power-Down Sequence

Definition Symbol Minimum Typical Maximum Unit

VDD to VDD_IO t1 0 – – s

VDD_IO to VAA/VAA_PIX t2 0 – – s

VAA/VAA_PIX to VDD_PLL t3 0 – – s

PwrDn until Next PwrUp Time t4 100 – – ms

_IO (1.8/2.8)

t 0

EXTCLK

VDD (1.8)

VAA_PIX

VAA (2.8)

VDD_PLL (2.8)

Power Down until next Power up cycle

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Package Dimensions

Figure 31: 48 iLCC Package Outline Drawing

Note: All dimensions are in millimeters.

MT9M034: 1/3-Inch CMOS Digital Image Sensor

Revision History

Rev. F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3/27/15

• Converted to ON Semiconductor template

• Removed Confidential marking

Rev. E . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6/6/13

• Updated “Hard Standby” on page 25

• Updated “Automatic Exposure Control” on page 30

• Updated Table 13, “I/O Timing Characteristics (2.8V Vdd_IO)1,” on page 44

• Updated Table 14, “I/O Timing Characteristics (1.8V Vdd_IO)1,” on page 45

• Updated Table 15, “I/O Rise Slew Rate (2.8V Vdd_IO)1,” on page 45

• Updated Table 16, “I/O Fall Slew Rate (2.8V Vdd_IO)1,” on page 46

• Updated Table 17, “I/O Rise Slew Rate (1.8V Vdd_IO)1,” on page 46

• Updated Table 18, “I/O Fall Slew Rate (1.8V Vdd_IO)1,” on page 46

• Updated Table 27, “Input Voltage and Current (HiSPi Power Supply 0.4 V),” on page 54

• Updated Table 28, “Input Voltage and Current (HiSPi Power Supply 1.8 V),” on page 54

• Updated Table 29, “Rise and Fall Times,” on page 55

• Updated Figure 31: “48 iLCC Package Outline Drawing,” on page 53

Rev. D . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3/31/11

• Updated Table 1, “Key Parameters,” on page 1

• Updated temperature range in “General Description” on page 5

• Deleted Figure 4: 48 iLCC Package, Parallel Output

• Deleted Table 3: Pin Descriptions

• Deleted Figure 5: 48 iLCC Package, HiSPi Output

• Deleted Table 4: Pin Descriptions, 48 iLCC

• Updated “Exposure” on page 17

• Updated “Motion Compensation” on page 21

• Updated “PLL-Generated Master Clock” on page 23

• Updated “Soft Standby” on page 24

• Updated “Hard Standby” on page 25

• Updated Figure 13: “Eight Pixels in Normal and Column Mirror Readout Modes,” on

page 26

• Updated Table 19, “DC Electrical Characteristics,” on page 47

• Updated notes for Table 21, “Operating Current Consumption in Parallel Output and

Linear Mode ,” on page 48and Table 22, “Operating Current Consumption in Parallel

Output and HDR Mode,” on page 48

• Updated Table 25, “Operating Current in HiSPi Output and HDR Mode,” on page 51

• Updated Table 23, “Standby Current Consumption ,” on page 49

• Updated conditions for Table 29, “Rise and Fall Times,” on page 55

Rev. C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2/3/11

• Updated “HDR Specific Exposure Settings” on page 20

• Updated Figure 29: “Two-Wire Serial Bus Timing Parameters,” on page 45

• Updated Table 19, “DC Electrical Characteristics,” on page 47

Rev. B . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12/7/10

• Applied updated Aptina template

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products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including

without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications

and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey

any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body,

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MT9M034: 1/3-Inch CMOS Digital Image Sensor

Revision History

Rev. A . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9/30/10

•Initial release