MICROELECTRONICS
A
A
Power Management
GMA7496L
2W+2W AMPLIFIER WITH DC VOLUME CONTROL
Features
2W+2W Output Power
R
L
= 8W @THD = 10% V
CC
= 14V
St-by and Mute Functions
Low Turn- on Turn-off POP Noise
Linear Volume Control DC Coupled With
Power Op- amp.
No Boucherot Cell
No St-by RC Input Network
Single Supply Ranging up to 15V
Short Circuit Protection
Thermal Overload Protection
Internally Fixed Gain
Soft Clipping
Variable Output After Volume Control Circuit
DIP- 20 Package
Description
The GMA7496L is a stereo 2W+2W class AB power ampli-
fier assembled in the @ DIP- 20 package, specially de-
signed for high quality sound, TV and Monitor applications.
Features of the GMA7496L include linear volume control,
Stand-by and mute functions.
TYPIC APPLICATION CIRCUITS
Varout_R
GND
7
1,2,3,13,
18,19,20
9
470nF
30K
Volume
V
S
15,16
OP- amp
+
-
INR
14
1000碌F
OUTR
S1 ST-BY
11 STBY
MUTE/STBY
PROTECTIONS
Volume
INL
470nF
SVR 10
470碌F
Volume
6
5
Varout_L
+5V
4
30K
+
-
OP- amp
60K
17 OUTL
1000碌F
10K
12 MUTE
1碌F
S2 MUTE
+5V
S_GND
100nF
300K
www.gammamicro.com
PRELIMINARY
GMA7496L
V0.1
1
+5V
1
2
3
4
5
