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| UTC TA8207K LINEAR INTEGRATED CIRCUIT LOW FREQUENCY POWER AMPLIFIER DESCRIPTION The UTC TA8207K is an audio power IC with built-in two channels developed for portable radio cassette tape recorder with power ON/OFF switch. Because of the parts reduction and SIP (Single inline package), space merit is remarkable. Thermal shut down protection circuit is built in. FEATURES *High Power : POUT=2.5W / CH (Typ.) (Vcc=9V, RL=4, f=1KHz, THD=10%) : POUT=4.6W / CH (Typ.) (Vcc=12V, RL=4, f=1KHz, THD=10%) *Low Popping Noise at Power ON *Small Quiescent Current : ICCQ=21mA (Typ.) (Vcc=9V, VIN=0) *Soft Clip *Built-in Thermal Shut Down Protection Circuit *Bast for Supply Voltage 9V, 12V *Operation Supply Voltage Range : Vcc=6-15V FSIP-12H ABSOLUTE MAXIMUM RATINGS (Ta=25C) PARAMETER Supply Voltage Output Current (Peak / CH) Power Dissipation Operating Temperature Storage Temperature SYMBOL Vcc Io(peak) PD Topr Tstg VALUE 20 2.5 12.5 -20 to + 75 -55 to + 150 UNIT V A W C C UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R107-013,A UTC TA8207K PARAMETER Quiescent Current Output Power Total Harmonic Distortion Voltage Gain LINEAR INTEGRATED CIRCUIT TEST CONDITIONS Vin=0 THD=10% Vcc=12V,THD=10% POUT=0.4W / ch Rf=120 VOUT=0.775Vrms GV(2) Rf=0, VOUT=0.775Vrms Rg=10k BW=20Hz ~ 20kHz Rg=600 Fripple=100Hz Rg=600, Amp1<->2 VOUT=0dBm, f=1kHz 56.5 30 0.3 52 50 30 SW1->OFF 1 60 1.0 dB k mVrms dB dB mV A 43 2.0 ELECTRICAL CHARACTERISTICS (Vcc=9V, RL=4, Rg=600, f=1kHz, Ta=25C, unless otherwise specified) SYMBOL ICCQ POUT(1) POUT(2) THD GV(1) MIN TYP 21 2.5 4.6 0.2 45 MAX 45 UNIT mA W W 1.0 47 % dB Input Resistance Output Noise Voltage Ripple Rejection Ratio Cross Talk Input Offset Voltage Stand-by Current RIN VNO R.R. C.T. V6,V7 TYPICAL DC VOLTAGE OF EACH TERMINAL (Vcc=9V, Ta=25C) TERMINAL NO. DC Voltage 1 8.7 2 4.5 3 Vcc 4 5.0 5 0.7 6 0.03 7 0.03 8 0.7 9 GND 10 4.5 11 8.7 12 Vcc UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R107-013,A UTC TA8207K TEST CIRCUIT LINEAR INTEGRATED CIRCUIT REMARK 1 : This IC can be used without coupling capacitor (CIN). If volume slide noise occurred by input offset voltage is undesirable, it needs to use the capacitor (CIN). REMARK 2 : The condenser between the pin3 and the GND (C11) is for reducing pop noise when the power ON/OFF switch (SW1) is set to ON/OFF. UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R107-013,A |
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