MAX9768EVKIT+ Maxim Integrated Products, MAX9768EVKIT+ Datasheet - Page 3

• Manufacturer Part Number: MAX9768EVKIT+
• Description: EVALUATION KIT FOR MAX9768
• Manufacturer: Maxim Integrated Products

Specifications of MAX9768EVKIT+

• Amplifier Type: Class D
• Output Type: 1-Channel (Mono)
• Max Output Power X Channels @ Load: 10W x 1 @ 8 Ohm
• Voltage - Supply: 4.5 V ~ 14 V
• Operating Temperature: -40°C ~ 85°C
• Board Type: Fully Populated
• Utilized Ic / Part: MAX9768
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4) Plug the audio source to the RCA jack.
5) Turn on the audio source.
6) Turn on the 4.5V to 14V DC power supply.
7) Adjust the potentiometer R6 to change the speaker
The MAX9768 EV kit is fully assembled and tested.
Follow the steps below to verify board operation for I
volume control. Caution: Do not turn on the power
supply until all connections are completed.
1) Visit www.maxim-ic.com/evkitsoftware to download
2) Install the MAX9768 evaluation software on your
3) On the CMAXQUSB board, ensure that the shunt of
4) Carefully connect the boards by aligning the
5) Ensure shunts on JU1, JU2, JU4, JU6, and JU7 are
6) Place the shunt on JU3 across pins 1-2.
7) Place the shunt on JU5 across pins 1-2.
8) Remove the shunt on JU8.
9) Connect the positive terminal of the 4.5V to 14V DC
10) Connect the 8Ω speaker across the FOUT+ and
11) Plug the audio source to the RCA jack.
12) Turn on the audio source.
13) Turn on the 4.5V to 14V DC power supply.
14) Connect the USB cable from the PC to the
volume.
the latest version of the EV kit software,
9768Rxx.ZIP.
computer by running the INSTALL.EXE program.
The program files are copied and icons are created
in the Windows Start menu.
JU1 is in the 3.3V position.
MAX9768 EV kit’s 20-pin connector with the 20-pin
connector of the CMAXQUSB board.
in their default positions (see Table 1).
power supply to the PV
power-supply ground terminal to the PGND binding
post.
FOUT- binding posts.
CMAXQUSB board. A Building Driver Database
window pops up in addition to a New Hardware
Found message. If you do not see a window that is
similar to the one described above after 30s, remove
the USB cable from the CMAXQUSB and reconnect
it. Administrator privileges are required to install the
USB device driver on Windows 2000/XP. Refer to
MAX9768 Evaluation Kit/Evaluation System
_______________________________________________________________________________________
Procedure for I
DD
binding post, and the
Volume Control
2
C Interface
2
C
15) Follow the directions of the Add New Hardware
16) Start the MAX9768 EV kit software by opening its
17) Move the volume-control slider on the software win-
Table 1. MAX9768 EV Kit Jumper Settings
* Default position.
JUMPER SHUNT POSITION
JU3, JU4
JU1
JU2
JU5
JU6
JU7
JU8
the TROUBLESHOOTING_USB.PDF document
included with the software if you have any prob-
lems during this step.
Wizard to install the USB device driver. Choose the
Search for the Best Driver for your Device option.
Specify the location of the device driver to be
C:\Program Files\MAX9768 (or the directory cho-
sen during installation) using the Browse button.
icon in the Start menu. The GUI main window
appears, as shown in Figure 1.
dow and verify that the speaker volume changes.
1-2, 2-3
2-3, 1-2
Open
Open
Open
Open
2-3*
1-2*
2-3*
2-3*
1-4*
1-2*
1-2*
1-2
2-3
1-2
1-2
1-2
1-3
Normal operation
Speaker mute
Normal operation
Amplifier shutdown
I
alone operation
I
I
I
Stand-alone operation
I
SYNC connected to GND
SYNC connected to V
SYNC unconnected
SYNC connected to external
clock
V
LDO regulator
V
power supply
In stand-alone operation:
classic PWM modulation
In stand-alone operation:
filterless modulation
I
2
2
2
2
2
2
C Address: disabled, stand-
C Address: 1001 011x
C Address: 1001 001x
C Address: 1001 010x
C volume control mode
C interface control mode
DD
DD
supplied by on-board
supplied by an external
DESCRIPTION
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