UTCPC1353 Datasheet, PDF (1/4 Pages) Unisonic Technologies – TV AUDIO PROCESSING CIRCUIT

UTCPC1353 LINEAR INTEGRATED CIRCUIT
TV AUDIO PROCESSING CIRCUIT
DESCRIPTION
UTC 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=8Ω,Output is 2.4W(17"TV)
When VCC=12V,RL=8Ω,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
22kΩ
Volume VR
control 5kΩ
270Ω
Input
coil
Deweighting
IF
discreminator
output
0.015 µF
4.7 µF
IF power
input
34
7
5
220 µF
14
attenuator
IF voltage
regulation
Power for
audio output
12
IF amplifier
limiter
13
Mute
Frequency
discreminator
Power AMP
output
10
Bootstrap
9
100 µF
8
330 µF
TAB
1
FM
discreminator
coil
2
10pF
6 11
22Ω
470pF
47 µF
Negative
Feedback
Decoupling
Fig 1
UTC UNISONIC TECHNOLOGIES CO., LTD. ¹
QW-R111-002,A