PAM8404
3W/CH Filterless Stereo Class-D Audio Amplifier
Test Setup for Performance Testing
PAM8404 Demo Board
Load
AP
+OUT
Input
Low Pass
AP System One
Analyzer
AP System One
Generator
Filter
-OUT
GND
AUX-0025
VDD
Power Supply
Notes
1. The AP AUX-0025 low pass filter is necessary for class-D amplifier measurement with AP analyzer.
2. Two 22ꢀH inductors are used in series with load resistor to emulate the small speaker for efficiency
measurement.
Power Analog Microelectronics,Inc
www.poweranalog.com
03/2009 Rev 1.1
13