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参数资料
| 型号： | LA4510 |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.24 W, 1 CHANNEL, AUDIO AMPLIFIER, PSIP9 |
| 封装： | SIP-9 |
| 文件页数： | 5/9页 |
| 文件大小： | 192K |
| 代理商： | LA4510 |
LA4510
No.1161-5/9
Removal of Bootstrap Capacitor
In applications where more power than required is available (approximately 60% of rating), it is possible to remove
bootstrap capacitor C7 (pin (7)-to-pin (8) short). However, since this causes clipping unbalance to occur, this unbalance
must be compensated by use of a resistor and a diode. A simple compensation method is shown below. This method
makes it possible to attain clipping balance at a certain supply voltage only.
R
C9
LA4510
R=56k
Ω
4.5V
=33k
Ω
3.0V
Unbalance compensation mothod
1
7
8
f
=
100Hz
1kHz
10kHz
THD -- PO
57
2
3
5
7
1.0
2
5
3
10
5
3
2
100
5
3
2
10
23
5
100
Output Power, PO -- mW
VCC = 3V
RL = 4Ω
VG = 45dB
T
o
tal
Harmonic
Distortion,
THD
-
-%
C6 = 470
μF
220μF
100μ
F
PO -- f
35
2
3
5
0
40
80
120
160
200
240
280
320
100
1k
23
5
10k
23
5
100k
Frequency, f -- Hz
VCC = 3V
RL = 4Ω
THD = 10%
Output
Po
wer
,P
O
-
-mW
THD
=
10%
V CC
= 4.5V
3V
2V
PO -- VIN
5
3
5
2
3
5
10
100
2
3
1000
2
3
5
72
3
5
1
23
10
7
Output
Po
wer
,P
O
-
-mW
Input Voltage, VIN -- mV
f = 1kHz
RL = 4Ω
VG = 45dB
R L
= 4
Ω
RL =
4
Ω
P O
ICC
8Ω
PO, ICC -- VCC
1
2
3
5
7
100
2
3
5
7
1000
234
5
6
Current
Dissipation,
I
CC
-
-mA
Output
Po
wer
,P
O
-
-mW
Supply Voltage, VCC -- V
f = 1kHz
THD = 10%
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