PAM8007
3W无滤波器D类立体声音频放大器
与直流音量控制和耳机输出
典型工作特性
（续）
耳机输出
1. THD + N与输出功率
3
0
2
0
1
0
5
2. THD + N与输出功率
30
20
RL=16Ω
VDD=5V
10
5
RL=32Ω
VDD=5V
2
1
%
0.
5
2
1
f=10kHz
f=1kHz
%
0
.5
0.
2
0.
1
05
.0
0
.2
0
.1
05
0
.
f=10kHz
f=1kHz
02
.0
f=100Hz
01
.0
1
u
2
u
5
u
10
u
2u
0
5u
0
10u
0
2u
00
50u
0
W
1
m
2
m
5
m
1m
0
20
m
5m
0
1m
00
02
0
.
01
0
.
1u
f=100Hz
2
u
5u
1u
0
2
0u
50
u
10u
0
20
0u
50u
0
W
1
m
2
m
5
m
1m
0
2m
0
5
0m
1m
00
3. THD + N与频率
10
5
4. THD + N与频率
1
0
5
VDD=5V
RL=16Ω
Po=1mW/10mW/60mW
VDD=5V
RL=32Ω
Po=1mW/10mW/50mW
2
2
1
1
0
.5
%
0
.2
0.
5
Po=1mW
Po=10mW
0
.1
%
0.
2
Po=50mW
0.
1
Po=10mW
0. 5
0
05
.0
0. 2
0
Po=10mW
50
10
0
20
0
5
00
H
z
1
k
2
k
5
k
1k
0
2k
0
02
.0
Po=1mW
0. 1
0
20
01
.0
2
0
5
0
1
00
20
0
5
00
H
z
1
k
2k
5
k
1k
0
2k
0
5. PSRR与频率
+
0
5
-
-1
0
-1
5
-2
0
-2
5
-3
0
-3
5
-4
0
d
B
-4
5
-5
0
-5
5
-6
0
-6
5
-7
0
-7
5
-8
0
-8
5
-9
0
2
0
5
0
10
0
2
00
5
00
H
z
1
k
2
k
5
k
1
0k
20
k
6.串扰与频率
+
0
T
TTTTT TTT TTTTTT TT TT
TTTTTTTTTTTTTTTT TTTTT
TTTTTTTTTTTTTTTT T TTT TT
TTT TTTTTTTTTTTT T TTT T TT T
TTTTTTTT TT
TTT TTTTTTTTTT
T T TTTT TTTT
TTTTTTTT TTTT
TTT
-10
-20
-30
-40
-50
d
B
-60
-70
-80
-90
1
- 00
1
- 10
20
从左至右
ř到L
50
100
200
500
Hz
1
k
2
k
5k
10
k
20
k
龙鼎微电子
,
INC。
www.poweranalog.com
8
01/2012 Rev1.2
PAM [ POWER ANALOG MICOELECTRONICS ]
