Datasheet
Evaluate: MAX9768
MAX9768 Evaluation Kit/Evaluation System
2 _______________________________________________________________________________________
Quick Start
Recommended Equipment
Before proceeding, the following equipment is needed:
• 4.5V to 14V DC, 3A power supply
• Audio source (i.e., CD player, 1V
RMS
maximum output)
•8Ω speaker
• MAX9768 EV system
MAX9768 EV kit
Maxim CMAXQUSB interface board
(USB cable included)
• A user-supplied Windows 98SE/2000/XP PC with a
spare USB port
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
underlined refers to items from the Windows 98SE/
2000/XP operating system.
Procedure for Stand-Alone Operation
The MAX9768 EV kit is fully assembled and tested.
Follow the steps below to verify board operation for
analog volume control. Do not turn on the power sup-
ply until all connections are completed.
1) On the MAX9768 EV kit, make sure the shunts are in
the default positions (see Table 1).
2) Connect the positive terminal of the 4.5V to 14V DC
power supply to the PV
DD
binding post, and the power-
supply ground terminal to the PGND binding post.
3) Connect the 8Ω speaker across the FOUT+ and
FOUT- binding posts.
Component Suppliers
Component Lists (continued)
SUPPLIER PHONE WEBSITE
Murata Mfg. Co., Ltd. 770-436-1300 www.murata.com
Panasonic Corp. 800-344-2112 www.panasonic.com
TDK Corp. 847-803-6100 www.component.tdk.com
DESIGNATION
QTY
DESCRIPTION
C19
1
100pF ±5%, 50V C0G ceramic
capacitor (0603)
Murata GRM1885C1H101J
J1
1
2 x 10 right-angle female receptacle
J2
1
White RCA mono jack
J3–J6
4
Binding posts, uninsulated
JU1–JU5
5
Single-row 3-pin headers
JU6
1
3-way-pin header
JU7, JU8
2
2-pin headers
L1, L2
2
60
Ω
, 3A ferrite beads (0805)
Murata BLM21PG600SN1
L3, L4
2
Shorted with 0
Ω
resistors (0603)
L5, L6
2
22µH, 1.9A inductors
TDK SLF10145T-220M1R9PF
R1, R5
2
10k
Ω
±5% resistors (0603)
R4
1
20
Ω
±5% resistor (1206)
R6
1
10k
Ω
±20% thumbwheel
potentiometer
Panasonic EVL-HFAA05B14
DESIGNATION
QTY
DESCRIPTION
U2
1
M axi m 12V l ow - d r op out l i near r eg ul ator
MAX1726EUK33+ (5-pin SOT23)
—
8
Shunts
—
4
0.250in x 0.500in 4–40 round nylon
spacers
—
4
4–40 x 0.375in nylon machine screws
—
1
PCB: MAX9768 Evaluation Kit+
MAX9768 EV Kit (continued)
Note:
Indicate that you are using the MAX9768 when contacting these component suppliers.
MAX9768 EV Kit Files
FILE DESCRIPTION
INSTALL.EXE
Installs the EV kit files
on your computer
MAX9768.EXE Application program
FTD2XX.INF USB device driver file
UNINST.INI
Uninstalls the EV kit
software
TROUBLESHOOTING_USB.PDF
USB driver installation
help file