DSC-PROG-8103-3225 - Micrel

to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to

implied warranties of merchantability or fitness for a particular use.

Page 1 |

MK-Q-B-P-D-110410-03-2

Programmable Low-Jitter Precision LVDS Oscillator

DSC8103

DSC8123

General Description

The DSC8103 & DSC8123 series of high

performance field-programmable oscillators

utilizes a proven silicon MEMS technology to

provide excellent jitter and stability over a

wide range of supply voltages and

temperatures. Using the TIMEFLASH

programmer, the end user can easily

program the oscillators’ frequency in the field

for immediate testing or use in advance

prototype development or production.

DSC8103 has a standby feature allowing it to

completely power-down when EN pin is

pulled low; whereas for DSC8123, only the

outputs are disabled when EN is low. Both

oscillators are available in industry standard

packages, including the small 3.2x2.5 mm2,

and are “drop-in” replacement for standard

6-pin LVDS quartz oscillators.

Block Diagram

Output Enable Modes

EN Pin

DSC8103

DSC8123

High

Outputs Active

NC

Outputs Active

Low

Standby

Outputs Disabled

Features

 Low RMS Phase Jitter: <1 ps (typ)

 High Stability: ±10, ±25, ±50 ppm

 Wide Temperature Range

o Industrial: -40° to 85° C

o Ext. commercial: -20° to 70° C

 High Supply Noise Rejection: -50 dBc

 Short Lead Time: 2 Weeks

 Wide Freq. Range: 10 to 460 MHz

 Small Industry Standard Footprints

o 2.5x2.0, 3.2x2.5, 5.0x3.2, & 7.0x5.0 mm

 Excellent Shock & Vibration Immunity

o Qualified to MIL-STD-883

 High Reliability

o 20x better MTF than quartz oscillators

 Low Current Consumption

 Supply Range of 2.25 to 3.6 V

 Standby & Output Enable Function

 Lead Free & RoHS Compliant

 LVPECL & HCSL Versions Available

 AEC-Q100 Automotive Qualified



Applications

 Storage Area Networks

o SATA, SAS, Fibre Channel

 Passive Optical Networks

o EPON, 10G-EPON, GPON, 10G-PON

 Ethernet

o 1G, 10GBASE-T/KR/LR/SR, and FCoE

 HD/SD/SDI Video & Surveillance

 PCI Express: Gen 1 & Gen 2

 DisplayPort

to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to

implied warranties of merchantability or fitness for a particular use.

Page 2 |

MK-Q-B-P-D-110410-03-2

DSC8103

Programmable Low-Jitter Precision LVDS Oscillator

DSC8123

Absolute Maximum Ratings

Item

Min

Max

Unit

Condition

Supply Voltage

-0.3

+4.0

V

Input Voltage

-0.3

VDD+0.3

V

Junction Temp

-

+150

°C

Storage Temp

-55

+150

°C

Soldering Temp

-

+260

°C

40sec max.

ESD

HBM

MM

CDM

-

4000

400

1500

V

Ordering Code

Note: 1000+ years of data retention on internal memory

Specifications

Notes:

1. Pin 6 VDD should be filtered with 0.1uf capacitor.

2. tsu is time to 100ppm of output frequency after VDD is applied and outputs are enabled.

3. Output Waveform and Test Circuit figures below define the parameters.

4. Output is enabled if pad is floated or not connected.

Parameter

Condition

Min.

Typ.

Max.

Unit

Supply Voltage1

VDD

2.25

3.6

V

Supply Current

IDD

EN pin low – outputs are disabled

DSC8103

DSC8123

20

0.095

22

mA

Frequency Stability

Δf

Includes frequency variations due

to initial tolerance, temp. and

power supply voltage

±10

±25

±50

ppm

Aging

Δf

1 year @25°C

±5

ppm

Startup Time2

tSU

T=25°C

5

ms

Input Logic Levels

Input logic high

Input logic low

VIH

VIL

0.75xVDD

-

0.25xVDD

V

Output Disable Time3

tDA

5

ns

Output Enable Time

tEN

DSC8103

DSC8123

5

20

ms

ns

Enable Pull-Up Resistor4

Pull-up resistor exist

40

kΩ

LVDS Outputs

Supply Current

IDD

Output Enabled, RL=50Ω

29

32

mA

Output offset Voltage

VOS

R=100Ω Differential

1.125

1.4

V

Delta Offset Voltage

∆VOS

50

mV

Pk to Pk Output Swing

VPP

Single-Ended

350

mV

Output Transition time3

Rise Time

Fall Time

tR

tF

20% to 80%

RL=50Ω, CL= 2pF

200

ps

Frequency

f0

Single Frequency

10

460

MHz

Output Duty Cycle

SYM

Differential

48

52

%

Period Jitter

JPER

2.5

psRMS

Integrated Phase Noise

JPH

200kHz to 20MHz @156.25MHz

100kHz to 20MHz @156.25MHz

12kHz to 20MHz @156.25MHz

0.28

0.4

1.7

2

psRMS

DSC81

0

Enable Modes

0: Enable/Standby

2: Enable/Disable

-

Packing

T: Tape & Reel

: Tube

3

C

I

5

Package

A: 7.0x5.0mm

B: 5.0x3.2mm

C: 3.2x2.5mm

D: 2.5x2.0mm

Temp Range

E: -20 to 70

I: -40 to 85

Stability

1: ±50ppm

2: ±25ppm

5: ±10ppm

T

to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to

implied warranties of merchantability or fitness for a particular use.

Page 3 |

MK-Q-B-P-D-110410-03-2

DSC8103

Programmable Low-Jitter Precision LVDS Oscillator

DSC8123

Nominal Performance Parameters (Unless specified otherwise: T=25° C, VDD=3.3 V)

Power supply rejection ratio

Phase jitter (integrated phase noise)

Output Waveform

Typical Termination Scheme

-80

-70

-60

-50

-40

-30

-20

-10

0

0.1 1 10 100 1000 10000

Rejection (dBc)

Supply Noise Frequency (kHz)

50-mV

100-mV

0.0

0.5

1.0

1.5

2.0

2.5

0200 400 600 800 1000

Phase Jitter (ps RMS)

Low-end of integration BW: x kHz to 20 MHz

156MHz-LVDS

212MHz-LVDS

320MHz-LVDS

410MHz-LVDS

VIL

1/fo

Output

Enable

tDA

tEN

tF

tR

VIH

80%

20%

50%

Output

830 mv

VDD

0.1uF

100 Ω100 Ω

2

3 4

5

6

350 mV

to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to

implied warranties of merchantability or fitness for a particular use.

Page 4 |

MK-Q-B-P-D-110410-03-2

DSC8103

Programmable Low-Jitter Precision LVDS Oscillator

DSC8123

Test Circuit

Solder Reflow Profile

MSL 1 @ 260°C refer to JSTD-020C

Ramp-Up Rate (200°C to Peak Temp)

3°C/Sec Max.

Preheat Time 150°C to 200°C

60-180 Sec

Time maintained above 217°C

60-150 Sec

Peak Temperature

255-260°C

Time within 5°C of actual Peak

20-40 Sec

Ramp-Down Rate

6°C/Sec Max.

Time 25°C to Peak Temperature

8 min Max.

60-150

Sec

20-40

Sec

60-180

Sec

8 min max

Pre heat

Reflow

Cool

Time

Temperature (°C)

3C/Sec Max.

6C/Sec Max.

200°C

217°C

150°C

25°C

260°C

3C/Sec Max.

60-150

Sec

20-40

Sec

60-180

Sec

8 min max

Pre heat

Reflow

Cool

Time

Temperature (°C)

3C/Sec Max.

6C/Sec Max.

200°C

217°C

150°C

25°C

260°C

60-150

Sec

20-40

Sec

60-180

Sec

8 min max

Pre heat

Reflow

Cool

Time

Temperature (°C)

3C/Sec Max.

6C/Sec Max.

200°C

217°C

150°C

25°C

260°C

3C/Sec Max.

to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to

implied warranties of merchantability or fitness for a particular use.

Page 5 |

MK-Q-B-P-D-110410-03-2

DSC8103

Programmable Low-Jitter Precision LVDS Oscillator

DSC8123

Package Dimensions

7.0 x 5.0 mm Plastic Package

5.0 x 3.2 mm Plastic Package

12

0.85

1.40

2.54

1.10

5.00

7.00

3.70

External Dimensions

units: mm[inch]

Output4 GND3 nc2

1Pin terminalNo. Enable

5VDD6

3

654

1 2 3

456

1.80

2.80

Output

to the contents, products, programs or services described at any time without notice. This document neither states nor implies any kind of warranty, including, but not limited to

implied warranties of merchantability or fitness for a particular use.

Page 6 |

MK-Q-B-P-D-110410-03-2

DSC8103

Programmable Low-Jitter Precision LVDS Oscillator

DSC8123

3.2 x 2.5 mm Plastic Package

2.5 x 2.0 mm Plastic Package

2.5±0.05 [0.098±0.002]

2.0±0.05 [0.079±0.002] 0.65±0.05 [0.026±0.002]

0.25±0.05 [0.099±0.002]

0.7±0.10 [0.028±0.004]

0.825 [ .032 ]

0.1 [.004] REF

0.9 [.035] REF

0.70 [0.028]

0.65 [0.026]

0.25 [0.0098]

0.85 [0.033]

0.375 [0.015]

Disclaimer:

Micrel makes no representations or warranties with respect to the accuracy or completeness of the information furnished in this data sheet. This information is not intended as a

warranty and Micrel does not assume responsibility for its use. Micrel reserves the right to change circuitry, specifications and descriptions at any time without notice. No license,

whether express, implied, arising by estoppel or otherwise, to any intellectual property rights is granted by this document. Except as provided in Micrel’s terms and conditions of

sale for such products, Micrel assumes no liability whatsoever, and Micrel disclaims any express or implied warranty relating to the sale and/or use of Micrel products including

liability or warranties relating to fitness for a particular purpose, merchantability, or infringement of any patent, copyright or other intellectual property right.

MICREL, Inc. ● 2180 Fortune Drive, San Jose, California 95131 ● USA

Phone: +1 (408) 944-0800 ● Fax: +1 (408) 474-1000 ● Email: hbwhelp@micrel.com ● www.micrel.com

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Authorized Distributor

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