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| PC1353 DESCRIPTION LINEAR INTEGRATED CIRCUIT TV AUDIO PROCESSING CIRCUIT 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 When VCC=12V,RL=8 * Linear volume control * Low harmonic distortion * Differential peak detector * Attenuation circuit for noise suppression(Typical80dB) W,Output is 2.4W(17"TV) W,Output is 1.2W(12"TV) DIP-14H APPLICATION CIRCUIT RB Vcc 220 mF Deweighting IF discreminator output 4.7 mF 0.015 mF IF power input 22kW Contek 14 0.1 mF 3 4 7 5 Volume VR control 5kW 270W attenuator IF voltage regulation 0.01 mF 100 mF Power for audio output 10 12 Input coil 0.022 mF IF amplifier limiter Bootstrap 100 mF Mute 13 Frequency discreminator 9 Power AMP output 8 330 mF 22W 470pF 47 mF TAB FM discreminator coil 1 2 100 mF 10pF 6 11 Negative Feedback Decoupling Fig 1 Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 1 PC1353 PARAMETER Input Voltage(pin 10) Input Current(pin10) Input Current(pin5) Signal Voltage Input Power Dissipation Power Dissipation Operating Temperature Storage Temperature LINEAR INTEGRATED CIRCUIT C) ABSOLUTE MAXIMUM RATING(Ta=25 SYMBOL V10 I10 I5 VI PD1 PD2 TOPR TSTG VALUE 20 1 100 3 0.8(Ta=75 C)Free air 1.4* -20 ~ +75 -40 ~ +150 UNIT V A mA VP-P W W C C *Area of copper pattern on PCB 50 x 50(mm) 2 ELECTRICAL CHARACTERISTICS(Ta=25 1.TYPICAL CHARACTERISTICS PARAMETER Current for Pin 10 Current for Pin 10 Audio Output Power Audio Output Power Bandwidth for Audio Stage C) SYMBOL I10 I10 POA POB fS TEST CONDITIONS THD2A=10% THD2B=10% THD=3% VCC=18V,RB=330 W,THD=3% -3dB VALUE 200 ~ 210 270 ~ 280 1.1 2.0 50 ~ 50K UNIT mA mA W W HZ 2. IF AMPLIFIER(VCC=12V,RB=100W,V14>=1.3V,fO=6.5MHZ,fm=400HZ,f=25KHZ,RG=50W) PARAMETER Pin 5 Voltage Pin5 Voltage Pin10 Current Pin10 Current IF limiter Voltage Discriminator Output Voltage Discriminator Distortion AM rejection ratio Maximum attenuation THD1 AMR VATT Vi=10mVrms Modulation 30% fm=400HZ Vi=10mVrms V14=0V -60 -80 dB -40 0.7 -50 % dB SYMBOL V5A V5B I10A I10B VLIM VOAF TEST CONDITIONS VCC=18V,RB=330 W No input signal VCC=18V,RB=330 W No input signal VOAF(Vi=10mVrms)= -3dB Vi=10mVrms MIN 7.5 7.5 14 16 TYP 8.0 8.0 19 28 200 MAX 8.5 8.5 24 35 400 UNIT V V mA mA m Vrms mVrms 300 360 Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 2 PC1353 PARAMETER Voltage Gain Output Power Output Power Distortion Distortion Total Distortion(IF+Audio) LINEAR INTEGRATED CIRCUIT SYMBOL GVAF POA POB THD2A THD2B THD3 3.AUDIO POWER AMPLIFIER(VCC=12V,RB=100W,RL=8W,f=400HZ,RG=600W) TEST CONDITIONS Vi=30mVrms THD=10% VCC=18V,RB=330 W THD=10% PO=0.5W VCC=18V,RB=330 W PO=0.5W PO=0.5W Vi=10mVrms v 1.5 4.0 % 0.6 0.5 2.0 2.0 % % MIN 33 0.9 2.0 TYP 37 1.2 2.4 MAX 41 UNIT dB W W TEST CIRCUIT 47 mF 47 mF S3 S4 Audio signal f=400Hz 600W VV 47 mF KF VV Amp VV 47 mF 0.015 mF S1 0.01 mF 100 mF Gain 60dB 3 7 4 11 6 10 220 mF 330 mF DCM 12 13 I10 Vcc 12V or 18V IF signal f=6.5MHz RG=50W Contek PC1353 8 9 100 mF RL=8W 0.022 mF KF VV TAB VV AC voltmeter Distortion meter DVM RB : Vcc 12V:100W Vcc 18V:330W S2 1 2 14 22kW 5kW 5 0.01 mF RB I5 220 mF KF V1 V14 Fig 2 Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 0.1 mF 10pF 100 mF V5 DVM 3 PC1353 25 LINEAR INTEGRATED CIRCUIT Power supply curve 20 18 f=1kHz Vcc=12V TYPICAL PERFORMANCE CHARACTERISTICS Total distortion curve 20 16 14 Power supply current Icc (mA) 15 10 Total distortion THD2 (%) 12 10 8 6 4 2 f=1kHz Vcc=18V 5 0 0 0 2 4 Power supply voltage Vcc (V) 6 8 10 12 14 16 18 20 0.5 1.0 1.5 2.0 2.5 Output power Po(W) 500 Detector output curve Audio amplifier frequency response curve Vcc=12V Vi=30mVrms Vout 400 0 -1 Detector output voltage (mVrms) (dB) Vcc=12V fo=6.5MHz 100%FM 30%AM fm=400Hz f=+25kHz Vi=10mVrms 2 300 -2 -3 -4 -5 -6 -7 200 100 0 10 10 3 Input voltage (mVrms) 10 4 Vi 10 5 10 6 Attenuation 10 10 2 10 3 10 4 10 5 Frequency (Hz) Audio power output curve 5 3 Power dissipation curve PCB thickness t=1.5mm Copper thickness t=30mm 4 f=1kHz Output power Po(W) V=18V THD=10% 3 V=12V THD=10% Power dissipation PD(W) 2 2 50x50(mm) 2 1 1 Free air 0 10 Input power Viaf(mVrms) 100 1000 0 0 50 Ambient temperature Ta( C) 100 150 Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 4 |
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