ICs for Audio Common Use
AN7124
Dual 3.1 W Audio Power Amplifier
s
Overview
The AN7124 is a monolithic integrated circuit designed
for dual audio power amplifier of portable radio cassette.
(10.0)
7.7±0.3
Unit : mm
12
φ3.6
+0.10
0.25
–0.05
2.54
(12.5)
(1.2)
19.1±0.3
21.9±0.3
HSIP012-P-0000A
s
Block Diagram
45 dB
45 dB
Mute
STB
Ripple
filter
Over current
thermal
protection
circuit
10
11
GND
GND
s
Pin Descriptions
Pin No.
1
2
3
4
5
6
Stand-by
Muting
ch.2 input
ch.1 input
Input GND
Ripple filter
Description
Pin No.
7
8
9
10
11
12
ch.1 output
ch.1 bootstrap
Output GND
V
CC
ch.2 bootstrap
ch.2 output
1
Description
V
CC
12
1
2
3
4
5
6
7
8
9
1.80±0.15
•
Radio-cassette
1.2±0.1
3.5±0.3
s
Applications
1.45±0.15
•
Audio output : 3.1 W
×
2 channel
•
Built-in standby and muting circuit
•
Built-in thermal shut down protection circuit
•
Low pop noise during standby and mute ON/OFF
•
No negative feedback pin
29.75±0.30
28.0±0.3
20.0±0.3
(1.27)
s
Features
(1.3)
R1.8
0.6
1
0.6
–0.05
(1.27)
(10.0)
+0.15
29.6±0.3
PANASONIC [ PANASONIC SEMICONDUCTOR ]
