PAM8803
3W Filterless Stereo Class-D Audio Amplifier
with Digital Volume Control
Typical Operating Characteristics (continued)
13. Output Power vs Power Supply
RL=4Ω
14. Output Power vs Power Supply
RL=8Ω
2.5
2
4
3.5
3
2.5
2
1.5
1
10%ΤΗD
10%ΤΗD
1%ΤΗD
1.5
1
1%ΤΗD
0.5
0
0.5
0
2
3
4
5
6
2
3
4
5
6
Supply Voltage (V)
Supply Voltage (V)
Gain Setting (VDD=5V)
Step
1
Gain (dB)
-75.0
-39.7
-34.0
-28.2
-22.4
-16.5
-10.5
-8.0
Step
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Gain (dB)
4.8
Step
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Gain (dB)
11.2
11.6
12.0
12.3
12.7
13.2
13.6
14.0
14.4
14.8
15.2
15.6
16.0
16.4
16.8
17.2
Step
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
Gain (dB)
17.6
18.0
18.4
18.8
19.2
19.6
20.0
20.4
20.9
21.3
21.7
22.1
22.5
22.9
23.4
23.8
2
5.1
3
5.5
4
5.9
5
6.3
6
6.7
7
7.1
8
7.5
9
-5.5
7.9
10
11
12
13
14
15
16
-2.9
8.3
-0.4
8.7
1.1
9.1
2.6*
9.6
3.6
10.0
10.4
10.7
4.0
4.4
*Power on gain or gain after reset.
Note: Gain could have 1dB deviation device to device.
Power Analog Microelectronics,Inc
www.poweranalog.com
12/2009 Rev 1.4
7
PAM [ POWER ANALOG MICOELECTRONICS ]
