17. OSC Frequency

100

120

140

160

180

200

220

240

260

280

300

33.5

44.5

5

Supply Voltage (V)

18. Rdson vs Supply Voltage

PMOS

NOMS

PAM8303D

Ultra Low EMI, 3W Filterless

Mono Class-D Audio Power Amplifier

11

,

Power Analog Microelectronics Inc

www.poweranalog.com

19. Start-up from Shutdown

SD

Output

200

210

220

230

240

250

260

270

280

290

300

2.7

3.4

4.1

4.8

5.5

Supply Voltage (V)

Typical Operating Characteristics

T =25 C, V =5V,

Gain=2V/V, unless otherwise noted

ADD

°

.

f=1kHz,

Input ac-ground

Isw=500mA

100% duty cycle

09/2008 Rev 1.4

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

PAM8303D Demo Board

+OUT

Input

Load

AP

Low Pass

Filter

AUX-0025

AP System One

Analyzer

GND

-OUT

VDD

Power Supply