lv4991th Sanyo Semiconductor Corporation, lv4991th Datasheet - Page 4
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lv4991th
Manufacturer Part Number
lv4991th
Description
For Portable Audio Equipment Monaural Btl Power Amplifier
Manufacturer
Sanyo Semiconductor Corporation
Datasheet
1.LV4991TH.pdf
(11 pages)
- Current page: 4 of 11
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Block Diagram and Sample Application Circuit
Test Circuit
from CPU
from CPU
V CNT
V STBH
R4
10kΩ
R3
10kΩ
C4
1µF
STBY
V STBL
CNT
1
2
3
4
5
10kΩ
10kΩ
VREF
OUT2
GND
1µF
CONTROL
+
-
1
2
3
4
5
BIAS
AMP2
VREF
CNT
STBY
OUT2
GND
LV4991TH
V CC
SPEAKER
8Ω
RADIATOR
AMP1
OUT1
V CC
FIN
IN
8
7
6
OUT1
V CC
IN
0.1µF
0.33µF
22kΩ
22kΩ
8
7
6
INPUT
0.1µF
C3
0.33µF
R1
22kΩ
R2
22kΩ
620Ω
+
C2
2.2µF
+
C1
2.2µF
V IN
V CC
No.A0743-4/11
V CC
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