CONTEK PC1353 Datasheet
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
Contek
14
0.1 mF
12
IF amplifier
13
0.022 mF
Volume
control
Input
coil
22kW
5kW
270W
VR
limiter
TAB
Deweighting
Mute
FM
discreminator
coil
IF discreminator
output
4.7mF0.015mF
attenuator
Frequency
discreminator
1 2
10pF
Fig 1
IF power
input
IF voltage
regulation
Power AMP
output
6 11
100 mF
Decoupling
5743
100 mF
47 mF
Negative
Feedback
10
RB
0.01 mF
Bootstrap
9
100 mF
Vcc
220 mF
Power for
audio output
8
330mF
22W
470pF
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
1
PC1353 LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATING(Ta=25 C)
PARAMETER SYMBOL VALUE UNIT
Input Voltage(pin 10) V10 20 V
Input Current(pin10) I10 1 A
Input Current(pin5) I5 100 mA
Signal Voltage Input VI 3 VP-P
Power Dissipation PD1 0.8(Ta=75 C)Free air W
Power Dissipation PD2
Operating Temperature TOPR -20 ~ +75 C
Storage Temperature TSTG -40 ~ +150 C
*Area of copper pattern on PCB 50 x 50(mm)
2
ELECTRICAL CHARACTERISTICS(Ta=25 C)
1.TYPICAL CHARACTERISTICS
PARAMETER SYMBOL TEST CONDITIONS VALUE UNIT
Current for Pin 10 I10 THD2A=10% 200 ~ 210 mA
Current for Pin 10 I10 THD2B=10% 270 ~ 280 mA
Audio Output Power POA THD=3% 1.1 W
Audio Output Power POB VCC=18V,RB=330W,THD=3% 2.0 W
Bandwidth for Audio Stage fS -3dB 50 ~ 50K HZ
2. IF AMPLIFIER(VCC=12V,RB=100W,V14>=1.3V,fO=6.5MHZ,fm=400HZ,f=25KHZ,RG=50W)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Pin 5 Voltage V5A 7.5 8.0 8.5 V
Pin5 Voltage V5B VCC=18V,RB=330W 7.5 8.0 8.5 V
Pin10 Current I10A No input signal 14 19 24 mA
Pin10 Current I10B VCC=18V,RB=330W
No input signal
IF limiter Voltage VLIM VOAF(Vi=10mVrms)= -3dB 200 400 m Vrms
Discriminator Output
Voltage
Discriminator Distortion THD1 Vi=10mVrms 0.7 %
AM rejection ratio AMR Modulation 30% fm=400HZ
Maximum attenuation VATT V14=0V -60 -80 dB
VOAF Vi=10mVrms 300 360 mVrms
Vi=10mVrms
*
1.4
16 28 35 mA
-40 -50 dB
W
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
2
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