PAM8603M
3W Filterless Stereo Class-D Audio Amplifier with DC Volume Control
Typical Operating Characteristics
(T =25°C)
A
1. Efficiency VS Output Power
100
90
80
Efficiency (%)
Efficiency (%)
100
90
80
2. Efficiency VS Output Power
70
60
50
40
30
20
10
0
0
V
DD
=5V
V
DD
=3.6V
70
60
50
40
30
20
V
DD
=5V
V
DD
=3.6V
R
L
=8 Ω
0.5
1
Output Pow er (W)
1.5
2
10
0
0
0.5
1
1.5
2
Output Pow er (W)
R
L
=4 Ω
2.5
3
3.THD+N VS Output Power
30
10
5
2
1
% 0.5
0.2
0.1
0.05
0.02
0.01
10m
20m
50m
100 m
200 m
W
500 m
1
2
4
.
4.THD+N VS Output Power
30
20
10
5
R
L
=8 Ω
Gain=20dB
f=1kHz
V
DD
=5V
R
L
=4 Ω
Gain=20dB
f=1kHz
V
DD
=5V
2
1
V
DD
=3.6V
V
DD
=3.6V
%
0.5
0.2
0.1
0 05
0.02
0.01
10 m
20 m
50 m
100m
W
200m
500m
1
2
4
5. THD+N VS Frequency
10
10
6. THD+N VS Frequency
5
5
Po=0.5W
R
L
=8 Ω
Cin=0.47 μ F
Gain=20dB
2
2
Po=1W
R
L
=4 Ω
Cin=0.47 μ F
Gain=20dB
%
1
%
1
0.5
V
DD
=5V
0.5
V
DD
=3.6V
0.2
0.2
V
DD
=3.6V
0.1
20
50
100
200
500
Hz
1k
2k
5k
10k
20k
V
DD
=5V
0.1
0.08
20
50
100
200
500
Hz
1k
2k
5k
10k
20k
Power Analog Microelectronics
,
Inc
www.poweranalog.com
5
10/2008 Rev 1.0
PAM [ POWER ANALOG MICOELECTRONICS ]
