TA7342P UTC | Alldatasheet

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UTC TA7342P LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R110-003,A PLL FM STEREO MULTIPLEX

DESCRIPTION

The UTC 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

UTC TA7342P LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R110-003,A ABSOLUTE MAXIMUM RATINGS(Ta=25°C ) PARAMETER SYMBOL VALUE UNIT Supply Voltage Vcc 6 V Lamp Voltage V LAMP 8 V Lamp Current (continuous) I LAMP 8 mA Power Dissipation P D 500 mW Operating Temperature Range T OPR -25 - +75 °C Storage Temperature Range T STG -55 +150 °C

ELECTRICAL CHARACTERISTICS

( Ta=25°C ,Vcc=3V, f=1kHz, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Quiescent Circuit Current I CCQ At Lamp off 4.5 8 mA Input Resistance R IN 10 kΩ Output Resistance R OUT 4 5 6 kΩ Maximum Input Voltage Vi(max) Lj+R=90%, P=10% THD=5%, fm=1kHz 400 mVrms Channel Separation CS L+R=180mV, P=20mV,fm=1kHz 30 35 dB Total Harmonic Distortion(mono) THD1 Vi=200mVrms (Monaural) 0.4 1 % Total Harmonic Distortion (stereo) THD2 L+R=1800mVrms,p=20mVrms, fm=1kHz 0.5 % Voltage Gain G V Vi=200mVrms -6.5 -5 -3.5 dB Channel Balance C B Vi=200mVrms 0 1.5 dB Lamp ON Level V L(ON) pilot only 9 15 mV Lamp OFF Level V L(OFF) pilot only 2 6 mV Stereo Lamp Hysteresis V H From ON to OFF 3 mVrms Carrier Leakage C.L. 19kHz,L+R=180mV,P=20mVrms 31 dB 38kHz,L+R=180mV,P=20mVrms 60 dB Capture range C.R. P=20mVrms +-3 % SCA Rejection Ratio SCA Rej. P=20mVrms, L+R=160mVrms, SCA=200mVrms, fSCA=67kHz 80 dB Signal to Noise Ratio S/N Vin=200mVrms, Rg=620Ω 82 dB DC ELECTRICIAL CHARACTERISTICS TERMINAL ITEM DESCRIPTION VALUE UNIT 1 INPUT 0.7 V 2 LPF-1 2.4 V 3 VCC 3.0 V 4 VO 2.5 V

5 GND 0 V

6 ST. LAMP - V 7 LPF-2 2.4 V 8 L-CH OUTPUT 1.0 V 9 R-CH OUTPUT 1.0 V

UTC TA7342P LINEAR INTEGRATED CIRCUIT UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R110-003,A TEST CIRCUIT UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice.