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參數資料
| 型號： | LA42201 |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | 20 W, 1 CHANNEL, AUDIO AMPLIFIER, ZFM7 |
| 封裝： | TO220-7 |
| 文件頁數： | 3/6頁 |
| 文件大小： | 69K |
| 代理商： | LA42201 |
LA42201
No.A0894-3/6
Block Diagram
Test Circuit
Description of external parts
CIN
: Input coupling capacitor, for which 0.47
μF is recommended. Since the input pin potential is about 1/2 VCC,
the ceramic capacitor with small leak current is recommended.
CRF
: Ripple filter capacitor, for which 100
μF is recommended. Note that the capacitance below 100μF will cause
decrease in the ripple removal ratio.
CMute
: Capacitor for mute.
CVCC
: Power capacitor.
Ripple
Filter
Input amplifier
Output amplifier
VCC/ground shorting protection circuit
Load shorting protection circuit
Thermal protection circuit
over voltage protection circuit
VCC
MUTE
+OUT
-OUT
IN
7
3
1
2
GND
4
5
6
Ri=
50k
Ω
IN
Ripple
Filter
Mute
GND
+OUT1
-OUT1
VCC
+
1
2
3
4
5
6
7
CVCC
1000
μF
/25V
CIN
0.47
μF
CRF
100
μF
/16V
RL = 4Ω
+
CMute
1
μF
/10V
VMute
RMute
10k
Ω
LA42201
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