lv49821vh Sanyo Semiconductor Corporation, lv49821vh Datasheet - Page 6

• Manufacturer Part Number: lv49821vh
• Description: Bi-cmos Ic For Portable Electronic Device Use 1.4w ? 2ch Btl Power Amplifier
• Manufacturer: Sanyo Semiconductor Corporation

Pin Function
Pin No.
FIN
13
10
12
11
1
8
2
3
4
5
6
7
9
IN1
IN2
STBY
BEEP
VREF
PRE-GND
A2CNT
NC
OUT2-1
OUT1-1
OUT2-2
OUT1-2
V CC
PWR-GND
Pin name
External apply
External apply
External apply
Pin voltage
V CC =5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
2.5V
0V
0V
−
Power amplifier input pin (1ch).
Power amplifier input pin (2ch).
Standby control pin.
Beep signal input pin.
Reference voltage pin.
Pre-stage block ground pin
2nd amplifier stop control pin.
Unused pin.
BTL 1st output pin (2ch).
BTL 1st output pin (1ch).
BTL 2nd output pin (2ch).
BTL 2nd output pin (1ch).
Power supply pin.
Power system ground pin, Radiation fin.
• Standby mode (0 to 0.3V)
• Operation mode (1.6V to V CC )
Function
LV49821VH
GND
V CC
3
4
VREF2
V CC
8
GND
V CC
2
6
VREF
1
V CC
V CC
VREF2
V CC
Equivalent circuit
30kΩ
50kΩ
VREF
15kΩ
450kΩ
V CC
BIAS
V CC
10
V CC
VREF2
GND
V CC
GND
V CC
GND
12
No.A1468-6/15
9
V CC
GND
13