UTC PC1353 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
22kΩ
VR
Volume
control
Input
coil
5kΩ
270Ω
14
12
IF amplifier
13
0.022 µF 0.1 µF
limiter
TAB
Deweighting
Mute
FM
discreminator
coil
IF discreminator
output
4.7 µF0.015 µF
attenuator
Frequency
discreminator
1 2
10pF
Fig 1
IF power
input
IF voltage
regulation
Power AMP
output
6 11
100 µF
Decoupling
5743
100 µF
47 µF
Negative
Feedback
10
RB
0.01 µF
Bootstrap
9
100 µF
Vcc
220 µF
Power for
audio output
8
330 µF
22Ω
470pF
UTC UNISONIC TECHNOLOGIES CO., LTD.
QW-R111-002,A
1
UTC 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=330Ω,THD=3% 2.0 W
Bandwidth for Audio Stage fS -3dB 50 ~ 50K HZ
2. IF AMPLIFIER(VCC=12V,RB=100Ω,V14>=1.3V,fO=6.5MHZ,fm=400HZ,f=25KHZ,RG=50Ω)
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=330Ω 7.5 8.0 8.5 V
Pin10 Current I10A No input signal 14 19 24 mA
Pin10 Current I10B VCC=18V,RB=330Ω
No input signal
IF limiter Voltage VLIM VOAF(Vi=10mVrms)= -3dB 200 400 µ 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
UTC UNISONIC TECHNOLOGIES CO., LTD.
QW-R111-002,A
2
UTC PC1353 LINEAR INTEGRATED CIRCUIT
3.AUDIO POWER AMPLIFIER(VCC=12V,RB=100Ω,RL=8Ω,f=400HZ,RG=600Ω)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Voltage Gain GVAF Vi=30mVrms 33 37 41 dB
Output Power POA THD=10% 0.9 1.2 W
Output Power POB VCC=18V,RB=330Ω
THD=10%
Distortion THD2A PO=0.5W 0.6 2.0 %
Distortion THD2B VCC=18V,RB=330Ω
PO=0.5W
Total Distortion(IF+Audio) THD3 PO=0.5W
Vi=10mVrms
TEST CIRCUIT
47 µF 47 µF
10pF
KF VV
47 µF 100 µF
22k
Ω
5k
Ω
Audio signal
f=400Hz
IF signal
f=6.5MHz
VV AC voltmeter
Distortion
KF
RB : Vcc 12V:100
Vcc 18V:330
meter
S1
0.022 µF
Ω
Ω
0.01 µF
RG=50
600
VV
Ω
47 µF
0.015 µF
3 7 4 11146
12
Ω
13
TAB
DVM
UTC PC1353
1
S2
V1 V14
2.0 2.4 W
0.5 2.0 %
v 1.5 4.0 %
S4S3
10
Gainæ=60dB
220 µF
330 µF
Amp
DCM
10
I
8
Ω
F
µ
=8
F
µ
0.01
100
L
R
RB
V5
DVM
µ
52
F
0.1
F
µ
100
9
VV
Vcc
12V or 18V
VVKF
I5
220 µF
Fig 2
UTC UNISONIC TECHNOLOGIES CO., LTD.
QW-R111-002,A
3
UTC PC1353 LINEAR INTEGRATED CIRCUIT
TYPICAL PERFORMANCE CHARACTERISTICS
25
20
15
Icc (mA)
10
Power supply current
5
0
Power supply curve
Power supply voltage
Vcc (V)
20
18
16
14
12
10
8
THD2 (%)
Total distortion
6
4
2
0
Total distortion curve
0.5 1.0 1.5 2.0 2.50 2 64 8 10 12 14 16 18 20
Output powerÊ Po(W)
f=1kHz
Vcc=12V
f=1kHz
Vcc=18V
500
400
Vout
¹
300
200
(mVrms)
100
Detector output voltage
0
10 10
5
4
3
2
Output power Po(W)
1
0
10 100 1000
Detector output curve
32
Input voltage¹ Vi
Audio power output curve
f=1kHz
Input power Viaf(mVrms)
(µVrms)
V=18V
THD=10%
Vcc=12V
fo=6.5MHz
100%FM
30%AM
fm=400Hz
f=+25kHz
Vi=10mVrms
4
1010
5
10
V=12V
THD=10%
6
10
Audio amplifier frequency response
Vcc=12V
Vi=30mVrms
0
-1
-2
(dB)
¿
-3
-4
-5
Attenuation
-6
-7
3
2
Power
PD(W)
dissipation
1
0
0 50 100 150
curve
2
10 10
3 4
Frequency
(Hz)
Power dissipation curve
PCB thickness t=1.5mm
Copper thickness
t=30µm
50x50(mm)
Free air
Ambient temperature
Ta(¢XC)
10
5
10
2
UTC UNISONIC TECHNOLOGIES CO., LTD.
QW-R111-002,A
4
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