ICs for Audio Common Use
1
AN7125
Dual Channel BTL Power Amplifier
n Overview
AN7125 is a monolithic integrated circuit designed for
13.5 W (12 V,4 W ) output audio power amplifier.It is a
dual channel BTL IC suitable for stereo operation in radio
cassette and TV application.
n Features
• Built-in muting pin
• Built-in stand by pin
• Built-in thermal shutdown protection circuit
• Built-in current limiting circuit
• High power : (13.5 W/12 V/4 W )
(13.0 W/15 V/8 W )
• Few external components
• Operating voltage range 6 V ~ 18 V (12 V typ.)
n Applications
• Radio-cassette
n Block Diagram
HSIP012-P-0000A
Unit : mm
REF
Mute
TSD
protection
circuit
Standby
circuit
V
CC
GND GND GND
1 2 3 4 5 6 7 8 9 10 11 12
7.7±0.3
(12.5)
19.1±0.3
21.9±0.3
(1.2)
(10.0)
(10.0)
29.6±0.320.0±0.3
0.6
28.0±0.3
29.75±0.30
f 3.6
R1.8
0.6
(1.27)
(1.27)
(1.3)
12
1
+0.15 –0.05
2.54
0.25
1.45±0.15
1.80±0.15
1.2±0.1
3.5±0.3
+0.10 –0.05