13

,

Power Analog Microelectronics Inc

www.poweranalog.com

Notes

1. The AP AUX-0025 low pass filter is necessary for class-D amplifier measurement with AP analyzer.

2. Two 22μH inductors are used in series with load resistor to emulate the small speaker for efficiency

measurement.

Test Setup for Performance Testing

AP System One

Generator

PAM8404 Demo Board

+OUT

Input

Load

AP

Low Pass

Filter

AUX-0025

AP System One

Analyzer

GND

-OUT

VDD

Power Supply

PAM8404

3W/CH Filterless Stereo Class-D Audio Amplifier

03/2009 Rev 1.1