PC1353 查看數據表（PDF） - Contek Microelectronics

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PC1353

TV AUDIO PROCESSING CIRCUIT

Contek Microelectronics 

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:sales@contek-ic.com

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