EV1740EC-00A – 3W HIGH EFFICIENCY MONO CLASS D AUDIO AMPLIFIER EVB

EV1740EC-00A Rev. 1.0

www.MonolithicPower.com

5

10/19/2011

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QUICK START GUIDE

This board is set up from the factory for MP1740EC evaluation, which is a mono BTL low-power

class-D audio amplifier (see Figure 5).

For audio performance test, the LC low-pass filter is required even if the analyzer has a low-pass

filter. So please use TP1 and TP2 for output terminals (see Figure 6).

For more information, consult the MP1740 datasheet.

Audio

Input

MPS

Monolithic Power Systems

MP1740 Demo Board

EV 1740EC-00A

Www.monolithicpower.com

Made in China

OUT-

OUT+

JP1 EXT_EN

JP2

GND VCC

Figure 5. Connection for Mono BTL output (Top viewer)

BOE

BS3000 Demo Board

BS3000-00A

TP2

TP1

+

-

Measurement

Input

Measurement

Output

OUT

IN

Load

Resistor

Figure 6. Connection for Audio Performance Test measure (Bottom viewer)

1. Setup Condition for 5V Operation

a

Ensure that all external power sources are set to off.

b

Adjust the power supply to 5V (do not turn on).

c

Connect the power supply to the VCC terminals.

d

Ensure that the audio input signal source level is set to minimum.

e

Connect the audio input signal source to the amplifier inputs.