ICs for Audio Common Use
n Overview
The AN7118S is the ICs designed for power amplifier of
low voltage operated compact radio and stereo tape
recorder. Stereo operation is enabled due to incorporat-
ing two amplifiers on one chip. Miniaturization of cassette
and high integration is realized due to SOP package.
n Features
• Low voltage operation : V
CC
= 1.8V to 4.5V
• Reduced voltage operation is available.
• Low pop noise when supply voltage is switched ON
and OFF
• Stereo drive of 4Ω (speaker) to 32Ω (headphone) load
is possible.
AN7118S
Low Voltage Dual 35mW Audio Power Amplifier Circuits (BTL 300mW)
1.3
0.4
–
0.25
1.27
0.1
–
0.1
0.3
1.5
–
0.2
0.650.15
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
18-Lead SOP Package (SOP018-P-0300)
12.6
–
0.3
7.7– 0.3
5.4– 0.3
Unit : mm
18 7 6 5 4 9
2
17
10 12 13 14 15 1
11
8
Input (1)
Input (2)
Output (1)
Output (2)
SEPP
Output Amp.
SEPP
Output Amp.
Driver
Driver
Input
Amp.
Input
Amp.
GND (Input) GND (Output)
VCC
3
16N.C
N.C
n Block Diagram