PAM8403
Filterless 3W Class-D Stereo Audio Amplifier
Typical Operating Characteristics (TA=25°C)
2. THD+N vs Output Power
1. THD+N vs Output Power
100
100
50
50
VDD=3.3V
VDD=3.3V
20
10
20
10
5
VDD=2.5V
VDD=2.5V
5
2
1
2
1
%
%
0.5
0.5
0.2
0.1
0.2
0.1
0.05
0.05
VDD=5V
VDD=5V
0.02
0.01
0.02
0.01
20m
50m
100m
200m
500m
1
2
4
20m
50m
100m
200m
500m
1
2
4
W
W
RL=4Ω, Gain = 24dB, f=1kHz
RL=8Ω, Gain = 24dB, f=1kHz
4. THD+N vs Frequency
3. THD+N vs Frequency
100
100
50
50
20
10
5
20
10
5
2
1
2
1
%
%
0.5
0.5
L
0.2
0.2
0.1
L
0.1
0.05
0.05
0.02
0.02
0.01
R
R
0.01
20
50
100
200
500
Hz
1k
2k
5k
10k
20k
20
50
100
200
500
Hz
1k
2k
5k
10k
20k
VDD=5V, RL=8Ω,Gain = 24dB, Cin=1μF
VDD=5V, RL=4Ω,Gain = 24dB, Cin=1μF
Power Analog Microelectronics,Inc
www.poweranalog.com
09/2008 Rev 1.3
6
PAM [ POWER ANALOG MICOELECTRONICS ]
