MAX9888EWY+T - Maxim - Datasheet.Live

_______________________________________________________________ Maxim Integrated Products 1

For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,

or visit Maxim’s website at www.maxim-ic.com.

MAX9888 Evaluation Kit

Evaluates: MAX9888

General Description

The MAX9888 evaluation kit (EV kit) is a fully assembled

and tested circuit board that evaluates the MAX9888

audio codec. The MAX9888 is an integrated audio

codec including microphone amplifiers, line amplifiers,

an earpiece amplifier, stereo Class D amplifiers, stereo

DirectDriveM headphone amplifiers, and digital signal

processing. The EV kit also includes Windows XPM-,

Windows VistaM-, and WindowsM 7-compatible software

that provides a simple graphical user interface (GUI) for

exercising the features of the device.

The EV kit provides access to all analog and digital

inputs/outputs on the device. To enable easy connec-

tion to a wide range of audio sources, audio devices are

included to convert both USB data and S/PDIF data to

I2S.

The EV kit integrates a MAXQ2000 microcontroller to

enable I2C communication with devices on the EV kit.

The EV kit software, running on a Windows PC, commu-

nicates with the EV kit over a standard USB port. The EV

kit software provides an intuitive interface to exercise the

functions of the device.

The EV kit comes with a MAX9888EWY+ installed.

Features

S 2.8V to 5.5V Single-Supply Operation

S Proven Audio PCB Layout

S On-Board USB-to-I2C Interface

S On-Board USB-to-I2S Converter

S On-Board S/PDIF Transceiver

S On-Board Clock Source

S On-Board Digital Microphone

S Evaluates the MAX9888EWY+ in a 3.8mm x

3.3mm, 63-Bump WLP Package

S Windows XP-, Windows Vista-, and Windows

7-Compatible Software

S Fully Assembled and Tested

19-5490; Rev 0; 8/10

DirectDrive is a registered trademark of Maxim Integrated Products, Inc.

Windows, Windows XP, and Windows Vista are registered trademarks of Microsoft Corp.

Figure 1. Block Diagram

Ordering Information

+Denotes lead(Pb)-free and RoHS compliant.

PART TYPE

MAX9888EVKIT+ EV Kit

DIGITAL

MIC INPUT

DIGITAL

MIC

DIGITAL

MIC

INPUT

POWER

STEREO ADC

USB OPTICAL USBOPTICAL

STEREO ADC

CONTROL

1.8V I2C I2S I2S

S/PDIF

TRANSCEIVER

FIXED-FUNCTION

DSP

DIGITAL AUDIO

INTERFACE

DIGITAL AUDIO

INTERFACE USB TO I2S

MIC

INPUT

MIC/LINE

INPUT

LINE

INPUT

EARPIECE

AMPLIFIER

CLASS D

AMPLIFIER

CLASS D

AMPLIFIER

CLASS AB

AMPLIFIER

CHARGE

PUMP

MAX9888

BYPASS

µC

POWER

SUPPLY

2.8V TO 5.5V

MAX9888 Evaluation Kit

Evaluates: MAX9888

2 ______________________________________________________________________________________

Component List

DESIGNATION QTY DESCRIPTION

C1, C2, C52,

C70 4

10FF Q20%, 6.3V X5R ceramic

capacitors (0805)

TDK C2012X5R0J106M

C3, C11, C12,

C16 4

0.1FF Q10%, 16V X7R ceramic

capacitors (0603)

TDK C1608X7R1C104K

C4–C9,

C122–C125 10

10pF Q5%, 50V C0G ceramic

capacitors (0402)

Murata GRM1555C1H100J

C14, C15, C23,

C25, C43, C50,

C53, C54

1FF Q20%, 6.3V X5R ceramic

capacitors (0603)

Taiyo Yuden JMK107B7105MA

C19, C20, C31,

C32, C57 5

0.01FF Q10%, 50V X7R ceramic

capacitors (0603)

Murata GRM188R71H103K

C21, C22, C27,

C29, C35, C40,

C42, C44–C47,

C51

0.1FF Q10%, 50V X5R ceramic

capacitors (0603)

TDK C1608X5R1H104K

C24, C26 2

2.2FF Q10%, 6.3V X5R ceramic

capacitors (0603)

Murata GRM188R60J225K

C28 1

47000pF Q10%, 25V X7R

ceramic capacitor (0603)

Murata GRM188R71E473K

C30 1

0.47FF Q10%, 6.3V X5R ceramic

capacitor (0603)

Murata GRM188R60J474K

C36, C41, C73,

C74 4

8pF Q0.5pF, 50V C0H ceramic

capacitors (0402)

Taiyo Yuden UMK105CH080DV

C38, C58–C65,

C119, C120,

C132, C133

0Not installed, ceramic capacitors

(0402)

C39 1

0.033FF Q10%, 25V X7R ceramic

capacitor (0603)

Murata GRM188R71E333K

DESIGNATION QTY DESCRIPTION

C48, C49 2

18pF Q5%, 50V C0G ceramic

capacitors (0603)

TDK C1608C0G1H180J

C55, C56, C69 3

0.1FF Q10%, 10V X7R ceramic

capacitors (0402)

KEMET C0402C104K8RAC

C66, C72 2

47FF Q20%, 6.3V X5R ceramic

capacitors (1206)

Murata GRM31CR60J476M

C67, C68, C71,

C77, C78, C92,

C93, C100–

C104, C114–

C118, C121,

C126–C129,

C131

1FF Q10%, 6.3V X5R ceramic

capacitors (0402)

TDK C1005X5R0J105K

C88–C91,

C134–C139 10

0.22FF Q10%, 6.3V X5R ceramic

capacitors (0402)

TDK C1005X5R0J224K

C130 1

2.2FF Q20%, 6.3V X5R ceramic

capacitor (0402)

Taiyo Yuden JMK105BJ225MV

D1 1 Yellow LED (0603)

D2 1 Red LED (0603)

EXTMICN,

EXTMICP, HPL,

HPR

0Not installed, multipurpose test

points

FB1, FB2 2 Ferrite beads (0603)

Murata BLM18PG221SN1

FB3–FB10 8 Ferrite beads (0402)

Murata BLM15HD182SN1

FB11, FB12,

FB14, FB15 40I Q5% resistors (0603)

FB13, FB16 2 0I Q5% resistors (0402)

J1, J10 2 USB mini-B right-angle PC-mount

receptacles

J3 1 3.5mm surface-mount stereo

headphone jack

J5 1 Digital audio optical transmitter

Toshiba TOTX147L

MAX9888 Evaluation Kit

Evaluates: MAX9888

_______________________________________________________________________________________ 3

Component List (continued)

DESIGNATION QTY DESCRIPTION

J6 1 Digital audio optical receiver

Toshiba TORX147L

J12–J15 4 Red RCA jacks

JU12 1 5-pin header

JU13, JU19 2 12-pin (3 x 4) headers

JU14–JU17,

JU22, JU27,

JU28, JU30,

JU32, JU34–

JU37, JU40,

JU41, JU42

16 2-pin headers

JU20 1 6-pin (2 x 3) header

L1 1 47FH, 220mA ferrite bead (1812)

Murata LQH43MN470J03L

L2–L5 0

Not installed, inductors

(6.2mm x 6.3mm)

TOKO D63CB series (22FH)

Q1 1 n-channel 2N7002 MOSFET

(SOT23)

R1, R9–R14,

R31, R32, R33,

R56, R59, R60,

R61

14 0I Q5% resistors (0402)

R2, R15, R16,

R29 0 Not installed, resistors (0402)

R3 1 1MI Q5% resistor (0603)

R4, R28 2 10kI Q5% resistors (0603)

R5 1 10kI Q5% resistor (0402)

R17 1 402I Q1% resistor (0603)

R18 1 47kI Q5% resistor (0603)

R19, R20 2 220I Q5% resistors (0603)

R21, R22, R23 3 1.5kI Q5% resistors (0603)

R24, R25 2 27I Q5% resistors (0603)

R26 1 470I Q5% resistor (0603)

R27 1 2.2kI Q5% resistor (0603)

R34, R37 2 1.5kI Q5% resistors (0402)

R35, R36, R39,

R41, R42, R43 622I Q5% resistors (0402)

DESIGNATION QTY DESCRIPTION

R38 1 1MI Q5% resistor (0402)

R50, R53 2 0I Q5% resistors (0603)

R54, R55, R57,

R58 42.2kI Q5% resistors (0402)

SPKLN, SPKRN 2 Black multipurpose test points

SPKLP, SPKRP 2 Red multipurpose test points

U1 1 Stereo audio codec (63 WLP)

Maxim MAX9888EWY+

U2 1

1.8V low-noise linear regulator

(5 SC70)

Maxim MAX8510EXK18+

(Top Mark: AEA)

U3 1

1.8V low-noise linear regulator

(5 SOT23)

Maxim MAX8887EZK18+

(Top Mark: ADPX)

U4 1 Digital audio transceiver (28 SO)

Cirrus Logic CS8427-CSZ

U5 1 USB audio codec (32 QFP)

Texas Instruments PCM2707PJT

U7 1 UART-to-USB converter (32 QFN)

U8 1

Low-power microcontroller

(56 TQFN-EP*)

Maxim MAXQ2000-RBX+

U9, U16 2

3.3V low-noise linear regulators

(5 SC70)

Maxim MAX8511EXK33+

(Top Mark: AEI)

U10 1

93C46 type 3-wire EEPROM

16-bit architecture

(8 SO)

U11 1

2.5V low-noise linear regulator

(5 SC70)

Maxim MAX8511EXK25+

(Top Mark: ADV)

U12 1

1.8V digital microphone (6 LGA)

Akustica AKU2002C

(Top Mark: A2002C)

MAX9888 Evaluation Kit

Evaluates: MAX9888

4 ______________________________________________________________________________________

Component List (continued)

*EP = Exposed pad.

Component Suppliers

Note: Indicate that you are using the MAX9888 when contacting these component suppliers.

DESIGNATION QTY DESCRIPTION

U13 0

Not installed, 1.8V digital

microphone (6 LGA)

Akustica AKU2002C

U14, U17, U23,

U24 4Dual SPDT switches (10 FDFN)

Maxim MAX4906ELB+

Y2 1 13MHz crystal oscillator

(3.2mm x 2.5mm)

Y3 1 16MHz crystal oscillator

(3.2mm x 2.5mm)

Y4 1 12MHz crystal oscillator

(3.2mm x 2.5mm)

DESIGNATION QTY DESCRIPTION

Y5 1

6MHz crystal (HC49)

Hong Kong X’tals

SSL60000N1HK188F0-0

— 4

22FH, 1A inductor

(6.2mm x 6.3mm)

TOKO #A916C4-220M

— 2 USB high-speed A-to-mini-B

cables, 6ft

— 18 Shunts

— 1 PCB: MAX9888 EVALUATION

KIT+

SUPPLIER PHONE WEBSITE

Akustica, Inc. 412-390-1730 www.akustica.com

Hong Kong X’tals Ltd. 852-35112388 www.hongkongcrystal.com

KEMET Corp. 864-963-6300 www.kemet.com

Murata Electronics North America, Inc. 770-436-1300 www.murata-northamerica.com

Taiyo Yuden 800-348-2496 www.t-yuden.com

TDK Corp. 847-803-6100 www.component.tdk.com

TOKO America, Inc. 847-297-0070 www.tokoam.com

MAX9888 Evaluation Kit

Evaluates: MAX9888

_______________________________________________________________________________________ 5

Quick Start

Required Equipment

• MAX9888 EV kit (USB cables included)

• User-supplied Windows XP, Windows Vista, or

Windows 7 PC with a spare USB port

• 2.8V to 5.5V, 1A DC power supply

• Set of headphones with a 3.5mm plug

Note: In the following sections, software-related items

are identified by bolding. Text in bold refers to items

directly from the EV kit software. Text in bold and under-

lined refers to items from the Windows operating system.

Procedure

The EV kit is fully assembled and tested. Follow the steps

below to configure the EV kit for audio playback and con-

trol from the PC to verify the EV kit is functioning properly.

1) Visit www.maxim-ic.com/evkitsoftware to down-

load the latest version of the EV kit software,

9888Rxx.ZIP. Save the EV kit software to a tempo-

rary folder and uncompress the ZIP file.

2) Install the EV kit software and USB driver on your

computer by running the INSTALL.EXE program

inside the temporary folder. The program files are

copied to your PC and icons are created in the

Windows Start | Programs menu. During software

installation, some versions of Windows may show

a warning message indicating that this software

is from an unknown publisher. This is not an error

condition and it is safe to proceed with installation.

Administrator privileges are required to install the

USB device driver on Windows.

3) Verify that all jumpers are in their default positions,

as shown in Table 1.

4) Connect the power supply between the SPKVDD

and GND PCB pads.

5) Set the power supply to 3.7V and turn it on.

6) Connect the USB cable from the PC to the EV

kit board. A Windows message appears when

connecting the EV kit board to the PC for the first

time. Each version of Windows has a slightly dif-

ferent message. If you see a Windows message

stating ready to use, then proceed to the next

step. Otherwise, open the USB_Driver_Help_200.

PDF document in the Windows Start | Programs

menu to verify that the USB driver was installed

successfully.

7) Start the EV kit software by opening its icon in the

Start | Programs | Maxim EVKIT Software menu.

The EV kit software main window appears, as

shown in Figure 2.

8) Wait while the software connects to the EV kit. Once

the connection is established, the status bar at the

bottom displays USB Connected and MAX9888

Connected.

9) Once the EV kit software has initialized, select the

Digital Audio tab.

10) Click on the USB block.

11) Click Yes to automatically configure the EV kit for

USB audio playback.

12) Connect a USB cable between the PC and J10.

Windows automatically detects the EV kit has a

sound card and installs the USB audio class driv-

ers. A USB DAC option is added to the list of avail-

able playback devices. All audio played through

this device is sent to the IC.

13) Connect headphones to J3 to hear audio generated

by the PC.

MAX9888 Evaluation Kit

Evaluates: MAX9888

6 ______________________________________________________________________________________

Detailed Description of Software

Graphical User Interface

The MAX9888 EV kit software uses a block diagram

interface to control all the functions of the MAX9888

audio codec. Click on blocks on the Analog Audio tab

(Figure 2) and Digital Audio tab (Figure 3) to control var-

ious functions of the device. Each block that represents

multiple control options displays a dialog box containing

all available controls for that block. Blocks that represent

a single option toggle the enable of that function when

clicked. Blocks colored grey are disabled while blocks

colored blue are enabled. Click on the MAX9888 Power

button to enable/disable the device. The icon is shaded

grey when the device is in shutdown. The icon is shaded

blue when the device is enabled.

To view the device’s register settings, select the Control

Registers tab (Figure 4). The value of all control reg-

isters is displayed and updated automatically when

changes are made using the graphical user interface

(GUI). Click on bit names or enter register values in

hexadecimal format to manually program the device’s

registers. Changes to the register map automatically

update the GUI.

Figure 2. MAX9888 EV Kit Software Main Window (Analog Audio Tab)

MAX9888 Evaluation Kit

Evaluates: MAX9888

_______________________________________________________________________________________ 7

Figure 3. MAX9888 EV Kit Software Main Window (Digital Audio Tab)

MAX9888 Evaluation Kit

Evaluates: MAX9888

8 ______________________________________________________________________________________

Figure 4. MAX9888 EV Kit Software Main Window (Control Registers Tab)

MAX9888 Evaluation Kit

Evaluates: MAX9888

_______________________________________________________________________________________ 9

Global Control Buttons

Buttons at the top of the EV kit software window control

the connection and synchronization of the software with

the device.

Press Reset to restore the EV kit to power-on default set-

tings. Uncheck options that need not be reset.

Press Connect to reconnect to the EV kit after the soft-

ware is started. The Connect button is disabled when

the software is already connected to the EV kit. The

Connect button is used primarily if the EV kit is con-

nected to the PC after the software is already running.

File Menu

The EV kit software can save its state to a configuration

file for loading at a later time. Select the Save Settings

menu item from the File menu bar to save the current

configuration. A Save As dialog box appears to allow the

location for the saved file to be selected. Files are saved

with the extension .ax14.

Select Load Settings to revert to a saved configuration.

An Open dialog box appears to allow the location of

the saved configuration file to be specified. The default

directory lists several presaved options. Alternatively,

.ax14 files are associated with the EV kit software.

Double click on a saved file to launch the EV kit software

and load the saved configuration.

Select Exit to exit the software.

View Menu

The Show S/PDIF Transceiver Registers menu item

under the View menu bar displays a new tab sheet for

manually controlling the CS8427.

Options Menu

When the Auto Connect menu item is selected from the

Options menu bar, the software automatically connects

to the EV kit board as soon as the connection is avail-

able.

When Auto Read Status is selected, the software auto-

matically reads the device registers every 1000ms.

The I2C Clock Speed submenu item selects the speed

of the I2C interface as either 400kHz or 100kHz.

Configure I2S Routing selects which of the I2S ports the

S/PDIF and USB devices connect to.

Tools Menu

Select the Debug Tools menu item under the Tools

menu bar to directly send I2C commands to the EV kit.

Select Export Register Setup File to export the value of

all registers set to a nondefault setting.

Select Read All Registers to update the software set-

tings with the register settings of the connected EV kit.

This option is useful if the EV kit software is restarted

without power cycling the EV kit.

Select Write All Registers to download all software set-

tings to the connected EV kit. This option is useful when

power has been removed from the device. Pressing the

Write All Registers button is only necessary when the

device’s entire register bank needs updating. Individual

Detailed Description of Hardware

The MAX9888 EV kit evaluates the MAX9888 audio

codec and provides access to all analog and digital

inputs/outputs on the device. In addition, the EV kit

includes support circuitry that eases evaluation of the

device.

Power Supplies

The EV kit requires a single 2.8V to 5.5V external supply

to operate. For evaluation other than power consumption,

all other supplies are generated from USB bus power.

Jumpers JU14–JU17 (see Table 1) allow all supplies on

the device to be disconnected from USB bus power and

powered externally. This allows varying the supply volt-

age and performing supply current measurements.

Class D Filters

The device integrates stereo Class D amplifiers. Although

these amplifiers are designed to operate completely fil-

terless, filters are often helpful during evaluation. Stuffing

options for two types of filters are provided on the EV kit.

When long speaker cables are used with the device,

a ferrite bead plus capacitor filter can be installed to

prevent excessive EMI radiation. Although it is best to

choose filter components based on EMI test results,

the combination of a 680pF capacitor with the Murata

BLM18SG331TN1 ferrite bead generally works well.

To allow analysis of the audio output with an oscillo-

scope, or an analyzer not designed to accept Cass D

switching waveforms, populate L2–L5 with the included

22FH inductors and make connections to external equip-

ment and speakers at FSPKLP, FSPKLN, FSPKRP, and

FSPKRN. The LC filter is designed to work best with an

8ω load. Do not connect the load at SPKLP, SPKLN,

SPKRP, and SPKRN when L2–L5 are installed.

MAX9888 Evaluation Kit

Evaluates: MAX9888

10 _____________________________________________________________________________________

S/PDIF Transceiver

The CS8427 S/PDIF transceiver serves as a format con-

verter between I2S and S/PDIF. Use this device to send

and receive digital audio over the optical connectors

(J5, J6).

When receiving S/PDIF data, the CS8427 outputs a

recovered master clock that is exactly 256 x fS, where

fS is the sample rate. This clock signal can be used to

clock the device.

When transmitting S/PDIF data, the CS8427 requires a

master-clock input. If S/PDIF data is also being received,

the CS8427 uses this data to generate its own master

clock. If S/PDIF data is not being received, then the

CS8427 generates a master clock based on the LRCLK

signal being output by the device. For proper transmit-

only operation, the device must be configured in master

mode.

USB Audio

The PCM2707 USB DAC generates I2S audio data from

a USB connection to the PC. The PCM2707 supports

standard class drivers that are included in most operat-

ing systems. As a result, no drivers are required for this

device. The PCM2707 appears as a sound card in the

PC and allows audio playback from the PC through the

device. The PCM2707 also generates a master-clock

signal that can be used to clock the device. The clock

signal is 256 x fS.

Digital Microphone

The device includes an on-board digital microphone

to demonstrate the digital microphone input. Install

shunts on jumpers JU27 and JU32 to enable the

microphone. When using the digital microphone, the

MIC1 analog microphone input cannot be used. If a

second digital microphone is added, then MIC2 is also

unavailable.

Jumper Selection

The EV kit includes 20 jumpers to adjust various hard-

ware configuration options. Table 1 describes all the

jumpers available on the EV kit.

Table 1. Jumper Selection

JUMPER SHUNT POSITION DESCRIPTION

JU12 — See Table 2

JU13 — See Table 3

JU14 1-2* Connects 1.8V to DVDD

Open Allows external powering of DVDD

JU15 1-2* Connects 1.8V to AVDD

Open Allows external powering of AVDD

JU16 1-2* Connects 1.8V to HPVDD

Open Allows external powering of HPVDD

JU17 1-2* Connects 3.3V to DVDDS1

Open Allows external powering of DVDDS1

JU19 — See Table 3

JU20 2-3*, 5-6* Connects the on-board I2C master to the device

Open Allows external control of the device over I2C

JU22 1-2* Connects 3.3V to DVDDS2

Open Allows external powering of DVDDS2

JU27 1-2 Connects the digital microphone data output to the device

Open* Disconnects the digital microphone data output from the device

JU28 1-2* Connects the device interrupt output (IRQ) to the on-board microcontroller

Open Disconnects the device interrupt output (IRQ) to the on-board microcontroller

JU30 1-2 Connects JACKSNS to MIC1 for jack detection

Open* Disconnects JACKSNS from MIC1

JU32 1-2 Connects the digital microphone clock input to the device

Open* Disconnects the digital microphone clock input from the device

MAX9888 Evaluation Kit

Evaluates: MAX9888

______________________________________________________________________________________ 11

Table 1. Jumper Selection (continued)

*Default position.

Table 2. Clock Sources (JU12)

*Default position.

Master Clock Selection

Jumper JU12 selects which master-clock source clocks

the device. The available clocks are shown in Table 2.

The EV kit software indicates the correct clock source

to use depending on which audio source is in use. If

an external audio source is used, choose either the on-

board 13MHz oscillator or an external clock. To connect

the external clock, remove the shunt from JU12 and con-

nect the clock to the center pin.

Digital Audio Interface

Jumpers JU13 and JU19 provide access to the digital

audio interfaces on the device. See Table 3 for individual

pin descriptions. When using the on-board USB and S/

PDIF audio sources, install shunts between pins 2-3 on

each row. When using an external audio source, remove

the shunts and connect the audio source clock and data

lines to position 2 of the header. Position 1 on each row

provides a convenient ground connection.

Control Interface

Jumper JU20 connects the on-board I2C master to the

device. When using an external I2C master, remove both

shunts from JU20 and connect position 1 to SDA and

SCL on the external I2C master. Install pullup resistors

at R15 and R16 if the external master does not include

pullup resistors.

Microphone Bias and Jack Sense

Jumpers JU34–JU37, JU40, and JU41 provide micro-

phone biasing on MIC1 and MIC2. To provide micro-

phone bias, install a shunt on JU40 and JU41. For single-

ended microphone inputs, install shunts on JU36 and

JU37. For differential microphone inputs, install shunts

on JU34 and JU35.

To enable microphone detection on MIC1, install a shunt

on JU30.

JUMPER SHUNT POSITION DESCRIPTION

JU34 1-2 Connects a 2.2kI resistor from MIC1N to ground for microphone biasing

Open* Disconnects MIC1N from ground

JU35 1-2 Connects a 2.2kI resistor from MIC2N to ground for microphone biasing

Open* Disconnects MIC2N from ground

JU36 1-2 Grounds MIC1N for single-ended operation on MIC1

Open* Enables differential operation on MIC1

JU37 1-2 Grounds MIC2N for single-ended operation on MIC2

Open* Enables differential operation on MIC2

JU40 1-2 Connects MIC1P to MICBIAS through a 2.2kI resistor

Open* Disconnects MIC1P from MICBIAS

JU41 1-2 Connects MIC2P to MICBIAS through a 2.2kI resistor

Open* Disconnects MIC2P from MICBIAS

JU42 1-2* Allows software to sense that a voltage is applied to SPKVDD (through SPKVDD_

POWERED net driving MAXQ2000)

Open Disconnects Q1 for accurate SPKVDD supply current measurement

SHUNT

POSITION CLOCK SOURCE

1-2 Disabled

1-3 CS8427 recovered master clock

1-4 13MHz oscillator

1-5* PCM2707 recovered master clock

MAX9888 Evaluation Kit

Evaluates: MAX9888

12 _____________________________________________________________________________________

Table 3. Digital Audio Interface (JU13, JU19)

Note: Default shunt position is between pins 2-3 for all rows.

JUMPER POSITION 1 POSITION 2 POSITION 3

JU13

GND BCLKS1 (device) BCLK (I2S1)

GND LRCLKS1 (device) LRCLK (I2S1)

GND SDINS1 (device) DAC Input (I2S1)

GND SDOUTS1 (device) ADC Output (I2S1)

JU19

GND BCLKS2 (device) BCLK (I2S2)

GND LRCLKS2 (device) LRCLK (I2S2)

GND SDINS2 (device) DAC Input (I2S2)

GND SDOUTS2 (device) ADC Output (I2S2)

MAX9888 Evaluation Kit

Evaluates: MAX9888

______________________________________________________________________________________ 13

Figure 5a. MAX9888 EV Kit Schematic (Sheet 1 of 5)

MAX9888 Evaluation Kit

Evaluates: MAX9888

14 _____________________________________________________________________________________

Figure 5b. MAX9888 EV Kit Schematic (Sheet 2 of 5)

MAX9888 Evaluation Kit

Evaluates: MAX9888

______________________________________________________________________________________ 15

Figure 5c. MAX9888 EV Kit Schematic (Sheet 3 of 5)

MAX9888 Evaluation Kit

Evaluates: MAX9888

16 _____________________________________________________________________________________

Figure 5d. MAX9888 EV Kit Schematic (Sheet 4 of 5)

MAX9888 Evaluation Kit

Evaluates: MAX9888

______________________________________________________________________________________ 17

Figure 5e. MAX9888 EV Kit Schematic (Sheet 5 of 5)

MAX9888 Evaluation Kit

Evaluates: MAX9888

18 _____________________________________________________________________________________

Figure 6. MAX9888 EV Kit Component Placement Guide—Component Side

4500mil

4000mil

MAX9888 Evaluation Kit

Evaluates: MAX9888

______________________________________________________________________________________ 19

Figure 7. MAX9888 EV Kit PCB Layout—Component Side

MAX9888 Evaluation Kit

Evaluates: MAX9888

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Figure 8. MAX9888 EV Kit PCB Layout—Ground Layer 2

MAX9888 Evaluation Kit

Evaluates: MAX9888

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Figure 9. MAX9888 EV Kit PCB Layout—Power Layer 3

MAX9888 Evaluation Kit

Evaluates: MAX9888

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Figure 10. MAX9888 EV Kit PCB Layout—Power Layer 4

MAX9888 Evaluation Kit

Evaluates: MAX9888

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Figure 11. MAX9888 EV Kit PCB Layout—Power Layer 5

MAX9888 Evaluation Kit

Evaluates: MAX9888

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Figure 12. MAX9888 EV Kit PCB Layout—Solder Side

Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied.

Maxim reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 25

MAX9888 Evaluation Kit

Evaluates: MAX9888

Revision History

REVISION

NUMBER

REVISION

DATE DESCRIPTION PAGES

CHANGED

0 8/10 Initial release —