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 DIP-14H * Differential peak detector * Attenuation circuit for noise suppression(Typical80dB) APPLICATION CIRCUIT Vcc IF discreminator output 0.015 mF 270W 14 4 7 5 Power for audio output 10 Input coil 0.022 mF 13 IF amplifier limiter Mute TAB 1 Power AMP output 2 6 10pF FM discreminator coil Bootstrap 9 Frequency discreminator 100 mF 12 220 mF IF voltage regulation attenuator 0.1 mF Volume VR control 5kW 3 Contek 22kW IF power input 4.7 mF 100 mF Deweighting 0.01 mF RB 100 mF 8 330 mF 22W 11 470pF 47 mF Negative Feedback Decoupling Fig 1 Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:[email protected] 1 PC1353 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING (Ta=25 PARAMETER C) 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 W Power Dissipation PD2 0.8(Ta=75 C)Free air 1.4* 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 W C) 1.TYPICAL CHARACTERISTICS SYMBOL TEST CONDITIONS VALUE UNIT Current for Pin 10 PARAMETER 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=330 W,THD=3% 2.0 W fS -3dB 50 ~ 50K HZ Bandwidth for Audio Stage 2. IF AMPLIFIER(VCC=12V,R B=100W,V14>=1.3V,f O=6.5MHZ,fm=400HZ,f=25KHZ,R G=50W) PARAMETER SYMBOL MIN TYP MAX 7.5 8.0 8.5 V VCC=18V,RB=330 W 7.5 8.0 8.5 V I10A No input signal 14 19 24 mA I10B VCC=18V,RB=330 W 16 28 35 mA 200 400 Pin 5 Voltage V5A Pin5 Voltage V5B Pin10 Current Pin10 Current TEST CONDITIONS UNIT No input signal IF limiter Voltage VLIM VOAF(Vi=10mVrms)= -3dB Discriminator Output VOAF Vi=10mVrms 300 360 m Vrms mVrms Voltage Discriminator Distortion THD1 Vi=10mVrms AM rejection ratio AMR Modulation 30% fm=400HZ Maximum attenuation VATT 0.7 % -40 -50 dB -60 -80 dB Vi=10mVrms V14=0V Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:[email protected] 2 PC1353 LINEAR INTEGRATED CIRCUIT 3.AUDIO POWER AMPLIFIER(VCC=12V,R B=100W,RL=8W,f=400HZ,RG=600W) SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Voltage Gain PARAMETER GVAF Vi=30mVrms 33 37 41 dB Output Power POA THD=10% 0.9 1.2 W Output Power POB VCC=18V,RB=330 W 2.0 2.4 W THD=10% Distortion THD2A PO=0.5W 0.6 2.0 % Distortion THD2B VCC=18V,RB=330 W 0.5 2.0 % 1.5 4.0 % PO=0.5W Total Distortion(IF+Audio) THD3 PO=0.5W v Vi=10mVrms TEST CIRCUIT 47 mF 47 mF S3 Audio signal f=400Hz 600W KF VV S4 VV Amp 47 mF 47 mF 7 4 11 12 RG=50W Contek 13 10 220 mF DCM PC1353 8 0.022 mF 9 1 2 14 VV AC voltmeter 22kW 5kW S2 Distortion meter 10pF DVM V1 V14 Vcc 12V or 18V 330 mF KF VV RB V5 0.1 mF KF I10 5 100 mF TAB VV 60dB 6 RL=8W IF signal f=6.5MHz 3 100 mF 0.01 mF S1 Gain 0.01 mF 0.015 mF 100 mF I5 220 mF DVM RB : Vcc 12V:100W Vcc 18V:330W Fig 2 Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:[email protected] 3 PC1353 LINEAR INTEGRATED CIRCUIT TYPICAL PERFORMANCE CHARACTERISTICS Power supply curve 25 Total distortion curve 20 18 f=1kHz Vcc=12V 16 Power supply current Icc (mA) 20 Total distortion THD2 (%) 14 12 15 10 8 10 f=1kHz Vcc=18V 6 4 5 2 0 0 0 2 4 6 8 10 12 Power supply voltage Vcc (V) 14 16 18 20 0.5 1.5 2.0 2.5 Po(W) Audio amplifier frequency response curve Detector output curve 500 1.0 Output power Vout Vcc=12V Vi=30mVrms 0 400 Detector output voltage (mVrms) (dB) -1 Attenuation 300 Vcc=12V fo=6.5MHz 100%FM 30%AM fm=400Hz f=+25kHz Vi=10mVrms 200 100 0 10 2 10 3 10 4 Input voltage (mVrms) Vi 10 5 -2 -3 -4 -5 -6 -7 10 6 10 2 10 3 10 4 10 5 Frequency (Hz) Audio power output curve Power dissipation curve 5 3 PCB thickness t=1.5mm Copper thickness t=30mm V=18V THD=10% Power dissipation PD(W) f=1kHz 4 Output power Po(W) 10 2 3 V=12V THD=10% 2 50x50(mm)2 1 Free air 1 0 10 100 Input power Viaf(mVrms) 1000 0 0 50 100 Ambient temperature Ta( C) Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:[email protected] 150 4