19-3912; Rev 1; 9/07
MAX9853 Evaluation Kit/Evaluation System
General Description
The MAX9853 evaluation system (MAX9853EVCMODU)
consists of a MAX9853 evaluation kit (EV kit), a compan-
ion Maxim command module (CMODUSB) interface
board, and software. The MAX9853 EV kit is a fully
assembled and tested surface-mount printed-circuit
board (PCB) that evaluates the MAX9853 stereo audio
GSM/GPRS/EDGE CODEC with microphone inputs,
DirectDrive
TM
headphone amplifiers, receiver amplifier,
and stereo line outputs. The EV kit is designed to send
and receive digital audio data in the Sony/Philips digital
interface (S/PDIF) format and can be optionally config-
ured to communicate using generic digital audio or I
2
S-
compatible signals. The EV kit provides RCA jacks for
connecting analog input signals and digital S/PDIF sig-
nals. A 3.5mm headphone jack provides easy connec-
tion of headphones to the PCB. The Maxim command
module interface board (CMODUSB) provides I
2
C inter-
face through a PC serial or USB port. Windows
®
98/2000/XP-compatible software, which can be down-
loaded from the Maxim website, provides a user-friendly
interface to exercise the features of the MAX9853. The
program is menu driven and offers a graphical user
interface (GUI) with control buttons and a status display.
The MAX9853EVCMODU includes the EV kit and the
CMODUSB interface board. Order the MAX9853EVKIT if
no Maxim command module interface is needed.
Note:
The MAX9853 EV kit software is provided with the
MAX9853EVKIT; however, the CMODUSB board is required to
interface the EV kit to the computer when using the included
software.
Windows is a registered trademark of Microsoft Corp.
Features
♦
3.5V to 5.5V Single-Supply Operation
♦
I
2
C 2-Wire Serial Interface
♦
Electrical S/PDIF Input/Output
♦
On-Board 26MHz Crystal Oscillator
♦
Two On-Board S/PDIF Digital Audio Receivers
♦
One On-Board S/PDIF Digital Audio Transmitter
♦
On-Board Power-Management IC
♦
Isolation Header for Direct Communication with
the MAX9853 I
2
C and Digital Audio Interfaces
♦
Easy-to-Use Menu-Driven Software
♦
Assembled and Tested
♦
Includes Windows 98/2000/XP-Compatible
Software and Demo PCB to Evaluate the MAX9853
Evaluate: MAX9853
Ordering Information
PART
MAX9853EVKIT
MAX9853EVCMODU
TYPE
EV Kit
EV System
System Diagram
POWE
SOFTWARE
REQUIRED
R
ANALOG INPUTS
SERIAL/USB CABLE
COMMAND
MODULE
EV KIT
ANALOG OUTPUTS
WINDOW
S PC
S/PDIF DIGITAL
INPUTS AND OUTPUTS
________________________________________________________________
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.
MAX9853 Evaluation Kit/Evaluation System
Evaluate: MAX9853
Component List
DESIGNATION
QTY
DESCRIPTION
DESIGNATION
C52, C60,
C64, C82
C53, C61, C93
C54, C62,
C65, C67, C70,
C73, C79
J1
J2, J3
J4
J5
J6
J7
J8, J9
15
1.0µF ±10%, 6.3V X5R ceramic
capacitors (0402)
TDK C1005X5R0J105M
JU1
JU2–JU7
L1, L2
13
0.01µF ±5%, 25V C0G ceramic
capacitors (0603)
TDK C1608C0G1E103J
1000pF ±5%, 50V C0G ceramic
capacitors (0603)
TDK C1608C0G1H102J
0.022µF ±20%, 25V X7R ceramic
capacitors (0402)
TDK C1005X7R1E223K
0.22µF ±10%, 6.3V X5R ceramic
capacitor (0402)
TDK C1005X5R0J224K
Not installed, capacitors (0603)
0.1µF ±10%, 10V X5R ceramic
capacitors (0402)
TDK C1005X5R1A104K
R1, R2, R17,
R18, R19, R22
R5, R9
R4, R8
R6, R10,
R12, R15
R7, R11
R13
R14
R16
R20, R23,
R35–R40
QTY
DESCRIPTION
220µF ±20%, 6.3V tantalum
capacitors (C-case)
AVX TPSC227M006R0250 or
AVX TPSC227M006R0100
Not installed, capacitors (C-case)
10µF ±10%, 6.3V X5R ceramic
capacitors (0805)
TDK C2012X5R0J106M
Stereo headphone jack
(3.5mm dia.)
Phono jacks (side-entry PCB
mount) yellow
Phono jack (side-entry PCB
mount) black
SMA PC-mount connector
Not installed, jumper
2 x 10 right-angle female
receptacle
Phono jacks (side-entry PCB
mount) white
Jumper, dual row, 28-pin header
Jumpers, 2-pin headers
3.3µH ±10%, 270mA inductors
(1812)
Coilcraft 1812CS-332XKB
Not installed, resistors (0603)
4.7kΩ ±5% resistors (0603)
75Ω ±5% resistors (0603)
47kΩ ±5% resistors (0603)
3.01kΩ ±1% resistors (0603)
243Ω ±1% resistor (0603)
107Ω ±1% resistor (0603)
0Ω ±5% resistor (1206)
10kΩ ±5% resistors (0603)
REQUIRED COMPONENTS
C1, C5
2
0.1µF ±10%, 10V X5R ceramic
capacitors (0402)
TDK C1005X5R1A104K
1.0µF ±10%, 6.3V X5R ceramic
capacitors (0402)
TDK C1005X5R0J105M
1.0µF ±10%, 6.3V X5R ceramic
capacitor (0603)
TDK C1608X5R0J105K
0.22µF ±20%, 16V X7R ceramic
capacitor (0603)
TDK C1608X7R1C224M
10µF ±10%, 6.3V X5R ceramic
capacitor (0805)
TDK C2012X5R0J106M
1.0kΩ ±5% resistor (0603)
10kΩ ±5% resistors (0603)
1
2
1
6
2
4
0
7
C2, C3, C4,
C9–C19, C94
15
C8
1
1
2
1
1
0
C20
1
C54
R3
R20, R40
C21, C22, C23,
C28, C29, C30,
C38, C39, C55,
C63, C68, C71,
C76, C77, C78
C24, C25, C31,
C32, C37, C66,
C69, C72, C74,
C80, C86, C88,
C90
C26, C33
1
1
2
SUPPORT COMPONENTS
0
2
2
4
2
1
1
1
8
2
C27, C34
2
C35
C36, C81
C40–C51,
C75, C83, C84,
C85, C87, C89,
C91, C92
1
0
20
2
_______________________________________________________________________________________
MAX9853 Evaluation Kit/Evaluation System
Component List (continued)
DESIGNATION
R21
R24
R25, R26
R27–R34
T1
QTY
1
1
2
8
1
DESCRIPTION
2.4kΩ ±1% resistor (0603)
510Ω ±5% resistor (0603)
100kΩ ±5% resistors (0603)
10kΩ ±5% resistors (0402)
Digital audio transformer
Scientific Conversion SC979-03
Stereo audio CODEC (48-pin
TQFN, 7mm x 7mm x 0.8mm)
Maxim MAX9853ETM
192kHz digital audio receivers
(28-pin TSSOP)
Cirrus Logic CS8416-CZ
192kHz digital audio transmitter
(28-pin TSSOP)
Cirrus Logic CS8406-CZ
Phase-locked loop
(14-pin TSSOP)
Texas Instruments TLC2933IPW
U8–U13, U16
7
U7
1
U6
1
DESIGNATION
QTY
DESCRIPTION
XC9500XL series CPLD
(VQFP-44)
Xilinx XC9536XL-7VQ44C
Level translator (10-pin µMAX
®
)
Maxim MAX1840EUB
Dual-bit, dual-supply level
translators (8-pin SSOP)
Texas Instruments
SN74AVC2T45DCTR
Power-management IC (20-pin
QFN, 5mm x 5mm x 0.9mm)
Maxim MAX1799AEGP
I
2
C-to-parallel converter
(16-pin QSOP)
Maxim MAX1609EEE
26MHz crystal clock oscillator
AVX K53-3C0-5E2
Shunts (see Table 3 for jumper
settings)
PCB: MAX9853 Evalution Kit
Evaluate: MAX9853
U1
1
U2, U3
2
U14
1
U4
1
U15
1
U5
1
Y1
—
—
1
18
1
µMAX is a registered trademark of Maxim Integrated Products, Inc.
Component Suppliers
SUPPLIER
AVX Corp.
Coilcraft, Inc.
Scientific Conversion
TDK Corp.
PHONE
843-946-0238
847-639-6400
415-892-2323
847-803-6100
FAX
843-626-3123
847-639-1469
—
847-390-4405
WEBSITE
www.avxcorp.com
www.coilcraft.com
www.scientificonversion.com
www.component.tdk.com
Note:
Indicate that you are using the MAX9853 when contacting these component suppliers.
_______________________________________________________________________________________
3
MAX9853 Evaluation Kit/Evaluation System
Evaluate: MAX9853
Quick Start
Recommended Equipment
• Computer running Windows 98, 2000, or XP
• Standard USB peripheral cable
• CMODUSB command module
• One 5.0V/1A DC power supply
• One pair of headphones (16Ω or greater)
• One analog audio source
• Three RCA interconnect cables
Refer to the MAX9851/MAX9853 data sheet while
using this EV kit for detailed descriptions of the
CODEC’s features.
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.
EV Kit Setup
1) Install a shunt on each of the following jumpers:
JU4–JU7, and each row of JU1 across pins 1-2.
2) Connect the 5V power supply between the PMIC
and AGND pads.
3) Carefully align the 20-pin connector of the MAX9853
EV kit with the 20-pin header of the CMODUSB
interface board. Gently press them together.
4) Launch the INSTALL.EXE on the included CD to
copy the files, install drivers for the CMODUSB
board, and create icons in the Windows 98/2000/XP
Start
menu.
5) Turn on the 5.0V power supply.
6) Connect the USB cable between the PC USB port
and the CMODUSB command module.
7) Start the MAX9853 program by opening its icon in
the
Start
menu or launching the executable. Verify
normal device operation by the
Status: MAX9853
Operational
text in the
Interface
box.
Verification of Board Operation
1) Connect a single RCA cable between S/PDIF IN1
and S/PDIF OUT.
2) Connect a stereo analog audio source to LINEIN1
and LINEIN2.
3) Insert a pair of headphones into the HEADPHONE jack.
4) Enable the stereo audio source.
5) Use the autosetup feature in the software to auto-
configure the MAX9853.
6) Audio will output at the headphone and line outputs.
7) Repeat steps 1 through 5 using S/PDIF IN2.
Procedure
The MAX9853 EV kit is fully assembled and tested.
Follow the steps below to verify board operation in an
analog input, digital loopback, analog output mode.
Once the board has been set up, verify that the board
is operating properly before beginning an evaluation.
Do not turn on the power supply until all connec-
tions are completed.
Command Module Setup
1) Set both switches (SW1) to the on position to
enable the SDA/SCL pullup resistors on the com-
mand module.
2) Install a shunt across pins 2-3 of the VDD select
jumper (J1) to set the command module working
voltage to 3.3V.
3) To avoid damaging the EV kit or the computer, do
not connect the USB cable until power has been
applied to the EV kit.
Detailed Description of Software
Autosetup
Click the
Auto-Setup
button to allow the EV kit to auto-
matically detect incoming digital signals and configure
itself appropriately. The software follows the flow chart
in Figure 1 during autosetup.
4
_______________________________________________________________________________________
MAX9853 Evaluation Kit/Evaluation System
Evaluate: MAX9853
BEGIN AUTOSETUP
IS THERE
SIGNAL AT
EITHER
S/PDIF INPUT?
NO
ENABLE THE DIGITAL
OUTPUT ON S1.
ENABLE THE ANALOG
LINE INPUTS AND THE
EXTMIC INPUT.
YES
ENABLE THE
APPROPRIATE DIGITAL
INPUT. ENABLE THE
SPEAKER AND
HEADPHONE
OUTPUTS.
IS S/PDIF OUT CONNECTED TO
EITHER S/PDIF INPUT?
YES
ENABLE THE APPROPRIATE DIGITAL
INPUT CONFIGURING THE MAX9853
FOR LOOPBACK THROUGH THE
S/PDIF INTERFACE. ENABLE THE
ANALOG LINE INPUTS AND THE
EXTMIC INPUT. ENABLE THE
LINE AND HEADPHONE
OUTPUTS.
NO
END AUTOSETUP
ENABLE THE DIGITAL
OUTPUT ON
THE CHANNEL
ALREADY IN USE.
ENABLE THE ANALOG
LINE INPUTS AND THE
EXTMIC INPUT.
DEFAULTS TO S1 IF
BOTH CHANNELS ARE
IN USE.
DISABLE ALL DIGITAL
INPUTS. ENABLE THE
DIGITAL OUTPUT ON
S1. ENABLE THE
ANALOG LINE INPUTS
AND THE EXTMIC
INPUT.
END AUTOSETUP
END AUTO-SETUP
END AUTOSETUP
Figure 1. Autosetup Routine Flow Chart
_______________________________________________________________________________________
5
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