ICs for Audio Common Use
1
AN5278
4.8 W · 1 (18 V, 8 W ) Power Amplifier with
Volume and Tone Control
n Overview
The AN5278 is a monolithic integrated circuit designed
for 4.8 W · 1 channel OTL (18 V, 8 W ) output audio power
amplifier suitable for TV application.
n Features
• Few external components :
• No boucherot cells (output C, R)
• No bootstrap capacitors
• Built-in DC mute of input pin during power-OFF
• Operating voltage range 12 V to 26 V (18 V typ.)
n Applications
• TV
HSIP009-P-0000
Unit : mm
In
1
LF
2
T
one
3
V
ol.
4
RF
5
NF
6 7
GND
Out
8
V
CC
9
Tone Volume
DC
mute
AC
mute
Pre
amp.
10 kW
10 kW
300 W
n Block Diagram
9
8
7
6
5
4
3
2
1
f
3.3
–
0.1
0.1
–
0.05
5.6– 0.25
–
0.25
1.7
1.7
–
0.25
0.45
+0.1 –0.05
f
2.65
–
0.1
8.4– 0.25
6.3 7.1
3.75– 0.25
0.5
–
0.1
1.2 –
0.25
2.5415.0
19.9
–
0.1
18.3
–
0.25
5.8– 0.25
1.5– 0.25
– 0.3 – 0.25
22.3
–
0.3