PAM8303D
Ultra Low EMI, 3W Filterless
Mono Class-D Audio Power Amplifier
Typical Operating Characteristics
TA=25°C, VDD=5V, f=1kHz, Gain=2V/V, unless otherwise noted.
18. Rdson vs Supply Voltage
17. OSC Frequency
300
280
260
240
220
200
180
160
140
120
100
300
290
280
270
260
250
240
230
220
210
200
Isw=500mA
100% duty cycle
Input ac-ground
PMOS
NOMS
3
3.5
4
Supply Voltage (V)
4.5
5
2.7
3.4
4.1
Supply Voltage (V)
4.8
5.5
19. Start-up from Shutdown
Output
SD
Test Setup for Performance Testing
PAM8303D Demo Board
Load
AP
+OUT
Input
GND
Low Pass
AP System One
Analyzer
AP System One
Generator
Filter
-OUT
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 22μH inductors are used in series with load resistor to emulate the small speaker for efficiency
measurement.
Power Analog Microelectronics,Inc
09/2008 Rev 1.4
www.poweranalog.com
11
PAM [ POWER ANALOG MICOELECTRONICS ]
