General Description

The MAX9850 evaluation system (EV system) consists

of a MAX9850 evaluation kit (EV kit), a companion

Maxim command module (CMOD232) interface board,

and software.

The MAX9850 EV kit is a fully assembled and tested

surface-mount printed circuit board (PCB) that evalu-

ates the MAX9850 headphone stereo DAC with inte-

grated headphone driver. The EV kit is designed to be

driven by any digital audio Sony/Philips Digital Interface

(S/PDIF) audio source and can be optionally configured

nals. The EV kit provides RCA jacks for connecting ana-

log input signals. A 3.5mm headphone jack allows for

easy connection of headphones to the PCB.

The Maxim command module interface board

(CMOD232) allows a PC to use its serial port to emulate

ble software, which can be downloaded from the

Maxim website, provides a user-friendly interface to

exercise the features of the MAX9850. The program is

menu driven and offers a graphical user interface (GUI)

with control buttons and a status display.

The MAX9850 EV system (MAX9850EVCMOD2#)

includes both the EV kit and the CMOD232 interface

board. Order the MAX9850 EV kit (MAX9850EVKIT#) if

you already have a command module interface.

Features

♦ 1.8V to 3.6V Single-Supply Operation

♦ Selectable Optical/Electrical S/PDIF Input

♦ On-Board 12MHz Crystal Oscillator

♦ On-Board Digital Audio Receiver

♦ No Detectable Clicks or Pops

♦ Easy-to-Use Menu-Driven Software

♦ Assembled and Tested

♦ Includes Windows 98/2000/XP-Compatible

Software and Demo PCB

MAX9850 Evaluation System/Evaluation Kit

________________________________________________________________

Maxim Integrated Products

1

DESIGNATION

QTY

DESCRIPTION

C5–C8

4

10μF ±20%, 6.3V X5R ceramic

capacitors (0805)

TDK C2012X5R0J106M

C9–C12, C15–

C23, C30, C31,

C37, C43

17

1.0μF ±20%, 6.3V X5R ceramic

capacitors (0402)

TDK C1005X5R0J105M

C13

1

2.2μF ±20%, 6.3V X5R ceramic

capacitor (0603)

TDK C1608X5R0J225M

C14

1

0.47μF ±20%, 16V X7R ceramic

capacitor (0603)

TDK C1608X7R1C474M

C24–C29, C35,

C44, C45

9

0.1μF ±20%, 10V X5R ceramic

capacitors (0402)

TDK C1005X5R1A104M

PART

QTY

DESCRIPTION

MAX9850EVKIT#

1

MAX9850 EV kit

CMOD232+

1

AC Adapter

1

9VDC at 200mA

(powers the CMOD232 board)

Component Lists

Ordering Information

19-3423; Rev 3; 3/09

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.

PART

TEMP

RANGE

IC

PACKAGE

INTERFACE

TYPE

MAX9850EVKIT#

0°C to +70°C 28 TQFN

Not included

MAX9850EVCMOD2# 0°C to +70°C 28 TQFN

CMOD232

Windows is a registered trademark of Microsoft Corp.

Note: The CMOD232 board is required to interface the EV kit to

the computer when using the software.

MAX9850 EV System

DESIGNATION

QTY

DESCRIPTION

C1, C2

2

220μF ±20%, 6.3V tantalum

capacitors (C-case)

AVX TPSC227M006R0070 or

AVX TPSC227M006R0100

C3, C4

0

Not installed, capacitors (C-case)

MAX9850 EV Kit

#

Denotes RoHS compliant.

+

Denotes lead-free and RoHS compliant.

MAX9850 EV Kit (continued)

#

Denotes RoHS compliant.