7

09/2008 Rev 1.2

,

Power Analog Microelectronics Inc

www.poweranalog.com

Typical Performance Characteristic

T =25°C unless otherwise noted.

A

PAM8301

Filterless Class-D Mono Audio Amplifier

13. PSRR

14.EMI vs Frequency

.

- 100

+0

- 90

- 80

- 70

- 60

- 50

- 40

- 30

- 20

- 10

d B

20

10k

50

100

200

500

1k

2k

5k

Hz

TTTT

R=8

L

Ω

,Gain=23dB,

V =5V,Input floating

DD

R=8

L

Ω

,Gain=23dB,

V =5V, Po=500

DD

mW

Test Setup for Performance Testing

Notes

1. The AP AUX-0025 low pass filter is necessary for every 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.

AP System One

Generator

PAM8301 Demo Board

+OUT

Input

Load

AP

Low Pass

Filter

AUX-0025

AP System One

Analyzer

GND

-OUT

VDD

Power Supply