lv4991m Sanyo Semiconductor Corporation, lv4991m Datasheet - Page 4

• Manufacturer Part Number: lv4991m
• Description: Bi-cmos Ic For Portable Audio Equipment Monaural Btl Power Amplifier
• Manufacturer: Sanyo Semiconductor Corporation

Block Diagram and Sample Application Circuit
Test Circuit
from CPU
from CPU
V IN
C3
0.33µF
620Ω
R3
10kΩ
C4
1µF
V STBY
R4
10kΩ
R1
22kΩ
0.33µF
STBY
VREF
CNT
IN
1µF
22kΩ
1
2
3
4
10kΩ
10kΩ
CONTROL
BIAS
1
2
3
4
V CC
LV4991M
R2
22kΩ
LV4991M
22kΩ
TSD
-
+
-
+
AMP1
AMP2
GND
V CC
8
7
6
5
8
7
6
5
OUT1
V CC
GND
OUT2
0.1µF
C2
0.1µF
+
2.2µF
8Ω
+
V CC
C1
2.2µF
No.A1492-4/11
V CC