UTC1353
DESCRIPTION
LI NEAR I NTEGRATED CI RCUI T
The UTC1353 is a monolithic integrated circuit designed for the SIF and audio section in television receivers. This IC has all functions including sound IF amplifier, FM detector, DC volume control circuit, audio output amplifier with 2.4Watts output power and voltage regulator.
FEATURES
- Wide operating voltage (9V to 18V) 2.4W, at Vcc=18V, RL=8Ω(For 17” TV) 1.2W, at Vcc=12V, RL=8Ω(For 12” TV)
- linear volume control
- Low Harmonic distortion
- Differential peak detector
- Enough attenuation (typical, 80d B) by squelch circuit
DIP-14H
TYPICAL APPLICATION CIRCUIT
RB 100µF 0.01µF
Vcc
220µF
Deemphasis
0.015µF
SIF Detector
4.7µF
Sound Power input
22kΩ
Volume VR Control 5kΩ
270Ω 0.1µF
Electronic attenuation
Voltage Regulator
Supply voltage for sound power stage
10 12
Input
0.022µF
IF input Amp squelch
FM Detector
Audio power...
