APA2020A Anpec Electronics Coropration, APA2020A Datasheet - Page 19

• Manufacturer Part Number: APA2020A
• Description: Stereo 2-W Audio Power Amplifier
• Manufacturer: Anpec Electronics Coropration

APA2020A
Typical Characteristics (Cont.)
Copyright  ANPEC Electronics Corp.
Rev. A.5 - July., 2002
0.8
0.6
0.4
0.2
0.8
0.6
0.4
0.2
1
0
1
0
2.5
0
THD +N = 1%
SE
Each Channel
THD +N = 1%
SE
Each Channel
4
3
R
V
V
L
DD
DD
8
- Load Resistance- Ω
3.5
=3.5V
- Supply Voltage - V
V
DD
12
Figure 50
Figure 48
= 5V
R
4
L
= 4Ω
16
4Ω
4Ω
4Ω
4Ω
4.5
20
5
24
R
R
L
L
= 8 Ω Ω Ω Ω Ω
= 32 Ω Ω Ω Ω Ω
5.5
28
R
L
= 32Ω Ω Ω Ω Ω
32
6
19
1.8
1.6
1.4
1.2
0.8
0.6
0.4
0.2
2.5
1.5
0.5
1
0
3
2
1
0
0
0
4
R
0.5
R
L
=3Ω
P
L
3Ω
3Ω
3Ω
3Ω
O
8
- Load Resistance- Ω
V
V
- Output Power - W
DD
DD
= 5V
= 3.3V
12
Figure 51
Figure 49
1
R
R
R
L
L
16
L
=4 Ω Ω Ω Ω Ω
= 8Ω Ω Ω Ω Ω
=3 Ω Ω Ω Ω Ω
1.5
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20
THD +N = 1%
BTL
Each Channel
V
BTL
Each Channel
DD
24
= 5V
2
28
2.5
32