MAX9776 Evaluation Kit
Procedure
Do not turn on the power supply until all connections
are made:
Component List (continued)
DESIGNATION QTY
DESCRIPTION
Not installed, resistors
R1, R2, R18
R3, R4
R7–R10
R11
0
2
4
1
1
3
1
1
1
1) Visit the Maxim Integrated Products website
(www.maxim-ic.com/evkitsoftware) to download the
latest version of the EV kit software, 9776Rxx.ZIP.
Save the EV kit software to a temporary folder and
unzip the 9776Rxx.ZIP file.
22Ω 5ꢀ resistors (0603)
27Ω 5ꢀ resistors (0603)
220Ω 5ꢀ resistor (0603)
470Ω 5ꢀ resistor (0603)
1.5kΩ 5ꢀ resistors (0603)
2.2kΩ 5ꢀ resistor (0603)
10kΩ 5ꢀ resistor (0603)
1kΩ 5ꢀ resistor (0603)
R12
2) Install the MAX9776 evaluation software on your
computer by running the INSTALL.EXE program.
The program files are copied and icons are created
in the Windows Start | Programs menu.
R13, R14, R15
R16
R17
3) Make sure the shunts of all jumpers on the MAX9776
EV kit are in the following default positions.
R19
MAX9776ETJ+ (32 TQFN, 5mm x
5mm x 0.8mm)
U1
U2
U3
1
1
1
JU1: (Open) INA is stereo input
JU2: (Open) INB is stereo input
JU3: (Open) INC is stereo input
MAXQ2000-RAX+ (68-pin QFN-EP)
93C46 type 3-wire EEPROM
(8-pin SO)
JU4: (1-2)
JU5: (1-2)
JU6: (1-2)
SDA connected to on-board micro-
controller
FTDI FT232BL (TQFP-32L, 7mm x
7mm)
Evluates:MAX976
U4
1
SCL connected to on-board micro-
controller
U5
U6
Y1
Y2
Y3
—
1
1
1
1
0
6
1
MAX8511EXK33+T (SC70-5)
MAX8511EXK25+T (SC70-5)
16MHz crystal
Normal operation
4) Connect the speaker across FOUT+ and FOUT-
pads.
6MHz crystal
Not installed
5) Connect the positive terminal of the 5V power sup-
ply to the VDD pad and the ground terminal of the
power supply to the GND pad.
Shunts
—
PCB: MAX9776 Evaluation Kit+
USB high-speed A-to-B cable
(1.5m)
—
1
6) Connect the stereo audio source across the INA1,
INA2, and GND pads.
7) Turn on the audio sources, and then turn on the
power supply.
Quick Start
Recommended Equipment
8) Connect the USB cable from the PC to the MAX9776
EV kit board. A Building Driver Database window
pops up in addition to a New Hardware Found mes-
sage if this is the first time the EV kit board is con-
nected to the PC. If you do not see a window that is
similar to the one described above after 30s, remove
the USB cable from the MAX9776 EV kit and recon-
nect it. Administrator privileges are required to install
the USB device driver on Windows 2000/XP. Refer to
the TROUBLESHOOTING_USB.PDF document
included with the software if you have any problems
during this step.
• 5V, 1.5A power supply
• Stereo audio source (i.e., CD player, MP3 player)
• One 4Ω (or 8Ω) speaker
• The MAX9776 EV kit (included with USB cable)
• A user-supplied Windows 98SE/2000/XP PC with a
spare USB port
Note: In the following section(s), software-related items
are identified by bolding. Text in bold refers to items
directly from the EV kit software. Text in bold and
underlined refers to items from the Windows
98SE/2000/XP operating system.
2
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