PC1353 Datasheet, PDF (1/4 Pages) Linear Integrated Systems – TV AUDIO PROCESSING CIRCUIT

PC1353
LINEAR INTEGRATED CIRCUIT
TV AUDIO PROCESSING CIRCUIT
DESCRIPTION
Contek PC1353 is designed for TV SIF signal amplification
and audio power amplification purpose. It includes SIF
amplifier, FM, frequency discriminator, DC volume control,
2.4W power amplifier and voltage regulator.
FEATURES
* Wide operating supply voltage,9V ~ 18V
When VCC=18V,RL=8 W,Output is 2.4W(17"TV)
When VCC=12V,RL=8 W,Output is 1.2W(12"TV)
* Linear volume control
* Low harmonic distortion
* Differential peak detector
* Attenuation circuit for noise suppression(Typical80dB)
DIP-14H
APPLICATION CIRCUIT
RB
Vcc
22kW
Volume VR
control 5kW
270W
Input
coil
Contek
Deweighting
IF discreminator
output
0.015 mF
4.7 mF
IF power
input
34
7
5
220 mF
14
attenuator
IF voltage
regulation
Power for
audio output
12
IF amplifier
limiter
13
Mute
Frequency
discreminator
Power AMP
output
10
Bootstrap
9
100 mF
8
330 mF
TAB
1
FM
discreminator
coil
2
10pF
6 11
22W
470pF
47 mF
Negative
Feedback
Decoupling
Fig 1
Contek Microelectronics Co.,Ltd.
1
CONTEK
http://www.contek-ic.com E-mail:[e-mail]