MAX9752AEVKIT Maxim Integrated, MAX9752AEVKIT Datasheet - Page 2

• Manufacturer Part Number: MAX9752AEVKIT
• Description: Amplifier IC Development Tools
• Manufacturer: Maxim Integrated
• Series: MAX9752, MAX9753, MAX9754r

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The MAX9752A EV kit is fully assembled and tested.
Follow the steps listed below to verify board operation.
Do not turn on the power supply until all connec-
tions are completed:
1) Install a shunt across pins 1 and 2 of jumper JU1
2) Install a shunt across pins 1 and 2 of jumpers JU2
3) Install a shunt across pins 2 and 3 of jumper JU4
4) Install a shunt on jumper JU5 (speaker enable).
5) Connect the first speaker to the OUTL+ and the
6) Connect the second speaker to the OUTR+ and the
7) Connect the 5V power supply to the VDD pad.
8) Connect the 5V or optional 3V power supply to the
9) Connect the audio source to the IN_L and the IN_R
MAX9752A Evaluation Kit
Note: Indicate that you are using the MAX9752A EV kit when contacting these component suppliers.
2
TDK
TOKO America
One 5V, 3A power supply
Optional 3V, 1A power supply
Audio source
Two 4Ω to 8Ω speakers
Stereo headphone
(IC enabled).
and JU3 (speaker gain = 13.5dB, headphone gain
= 3dB).
(volume control is selected).
OUTL- test points.
OUTR- test points.
Connect the ground terminal of the power supply to
the GND pad.
HPVDD pad. Connect the ground terminal of the
power supply to the GND pad.
pads. Connect the ground from the audio source to
the GND pad.
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847-803-6100
847-297-0070
PHONE
10) Turn on both power supplies and the audio source.
11) Adjust potentiometer R2 to change the speakers’
12) Connect the headphone to the phone jack J1.
13) Adjust potentiometer R2 to adjust the headphone’s
The MAX9752A EV kit is designed to evaluate the
MAX9752A, as well as the MAX9752B/MAX9752C/
MAX9753/MAX9754. All of these Class D amplifiers
drive stereo BTL speakers, and stereo headphones in
portable audio applications. The EV kit comes with a
MAX9752A IC installed.
The EV kit can operate from a 4.5V to 5.5V DC power
supply, and deliver 2 x 2.2W continuous power into a
pair of
configurations are available for ease of evaluation. The
headphone amplifiers deliver 63mW per channel into a
16Ω stereo headphone. Optionally, the headphone
amplifier can operate from a 3V power supply.
The MAX9752A EV kit speaker and headphone volume
is adjustable by the thumb-wheel potentiometer (R2)
connected to the analog volume control (VOL) of U1.
The MAX9752A’s maximum gain is configurable using
jumpers JU2 and JU3. The MAX9752A EV kit features
an audible alert input, PC_BEEP, on the PC board pad.
The EV kit can also evaluate the MAX9752B/
MAX9752C/MAX9753/MAX9754. To evaluate these ICs,
replace the MAX9752A with the desired IC. See the
Evaluating the MAX9753 or the Evaluating the MAX9754
section for additional information.
The speaker and headphone outputs on the EV kit can be
selected by jumper JU5 and headphone jack J1. See
Table 6 in the Jumper Selection section.
volume.
volume.
847-390-4405
847-699-1194
4Ω speakers. Three different speaker output
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