la4809m Sanyo Semiconductor Corporation, la4809m Datasheet - Page 5

• Manufacturer Part Number: la4809m
• Description: Monolithic Linear Ic Stereo Headphone Amplifier
• Manufacturer: Sanyo Semiconductor Corporation

Pin Functions
Pin No.
12
10
11
1
2
3
4
9
5
8
6
7
IN1
IN2
RF
STBY
OUT1
OUT2
NC
V CC
GND
PLS
Pin Name
mode-A
Applied
Applied
Pin Voltage (V)
GND
0.69
2.1
2.1
2.1
mode-B
Applied
Applied
GND
GND
3.1
3.1
3.1
Amplifier input pin.
Standby control pin.
Reference voltage pin.
(to which the external voltage is applied)
Amplifier output pin.
NC pin.
Power pin.
(to which the external voltage is applied)
GND pin.
Output power selection pin.
Description
LA4809M
2
12
IN
VREF
1
V CC
V CC
3
VREG
V CC
10
VREF
PLS-cnt
V CC
54kΩ
45kΩ
Equivalent Circuit
39μA
+
-
V CC
35kΩ
45kΩ
V CC
10kΩ
V CC
22μA
V CC
26kΩ
77kΩ
V CC
× 2
× 1
10kΩ
No.A1569-5/15
STBY-cnt
V CC
OUT
VREG
VREF
4
9