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| TA7342P DESCRIPTION LINEAR INTEGRATED CIRCUIT PLL FM STEREO MULTIPLEX The Contek TA7342P is a PLL FM stereo multiplex integrated circuit, designed for portable radio applications. FEATURES *Wide operating supply voltage : Vcc=1.8V-5V *Suitable for LED driving : Ilamp=8mA(max.) *VCO stop capability (The VCO is stopped when the LPF2 termianl is connected to the power supply line, and the the stereo indicator is turn off.) *Easy Adjustment (The monitored free running frequency of VCO is 76kHz at stereo Lamp terminal SIP-9 BLOCK DIAGRAM Contek Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 1 TA7342P PARAMETER LINEAR INTEGRATED CIRCUIT C) 6 8 8 500 -25 - +75 -55 +150 ABSOLUTE MAXIMUM RATINGS(Ta=25 Supply Voltage Lamp Voltage Lamp Current (continuous) Power Dissipation Operating Temperature Range Storage Temperature Range Vcc VLAMP ILAMP PD TOPR TSTG SYMBOL VALUE UNIT V V mA mW C C ELECTRICAL CHARACTERISTICS Quiescent Circuit Current Input Resistance Output Resistance Maximum Input Voltage Channel Separation Total Harmonic Distortion(mono) Total Harmonic Distortion (stereo) Voltage Gain Channel Balance Lamp ON Level Lamp OFF Level Stereo Lamp Hysteresis Carrier Leakage Capture range SCA Rejection Ratio Signal to Noise Ratio ( Ta=25 C ,Vcc=3V, f=1kHz, unless otherwise specified) PARAMETER SYMBOL ICCQ RIN ROUT Vi(max) CS THD1 THD2 GV CB VL(ON) VL(OFF) VH C.L. C.R. SCA Rej. S/N TEST CONDITIONS At Lamp off MIN 4 TYP 4.5 10 5 400 35 0.4 0.5 -5 0 9 6 3 31 60 +-3 80 82 MAX 8 6 Lj+R=90%, P=10% THD=5%, fm=1kHz L+R=180mV, P=20mV,fm=1kHz Vi=200mVrms (Monaural) L+R=1800mVrms,p=20mVrms, fm=1kHz Vi=200mVrms Vi=200mVrms pilot only pilot only From ON to OFF 19kHz,L+R=180mV,P=20mVrms 38kHz,L+R=180mV,P=20mVrms P=20mVrms P=20mVrms, L+R=160mVrms, SCA=200mVrms, fSCA=67kHz Vin=200mVrms, Rg=620W mA kW kW mVrms dB % % dB dB mV mV mVrms dB dB % dB dB UNIT 30 1 -3.5 1.5 15 -6.5 2 DC ELECTRICIAL CHARACTERISTICS TERMINAL 1 2 3 4 5 6 7 8 9 ITEM DESCRIPTION INPUT LPF-1 VCC VO GND ST. LAMP LPF-2 L-CH OUTPUT R-CH OUTPUT VALUE 0.7 2.4 3.0 2.5 0 2.4 1.0 1.0 UNIT V V V V V V V V V Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 2 TA7342P TEST CIRCUIT LINEAR INTEGRATED CIRCUIT Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 3 |
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