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| UTC2822 DUAL LOW VOLTAGE POWER AMPLIFIER DESCRIPTION LI NEAR I NTEGRATED CI RCUI T The UTC2822 is a monolithic integrated audio amplifier in a 8-Pin plastic Dual in line package. It is designed for portable cassette players and radios. FEATURES *Wide operating supply voltage:Vcc=1.8V- 12V *Low crossover distortion *Low quiescent circuit current *bridge/stereo configuration DIP-8 BLOCK DIAGRAM VCC 2 PIN CONFIGURATION INPUT1 7 1 NP1 8 OUTPUT1 OUTPUT 1 Vcc OUTPUT 2 1 2 3 4 8 7 6 5 NF 1 INPUT 1 INPUT 2 NF 2 INPUT2 6 3 NP2 5 OUTPUT2 GND 4 GND ABSOLUTE MAXIMUM RATINGS(Ta=25C) Characteristic Supply Voltage Output Peak Current Power Dissipation Operating Temperature Storage Temperature Symbol VCC IO(peak) PD Topr Tstg Value 15 1 at Tamb=50C 1.0 at Tcase=50C 1.4 -20~+70 -40~+150 Unit V A W C C YOUW ANG ELECTRONI CO. CS LTD 1 UTC2822 ELECTRICAL CHARACTERISTICS LI NEAR I NTEGRATED CI RCUI T Min 1.8 Vi=0 Stereo Bridge Stereo Stereo,VCC=6V,RL=4, THD=10% Stereo,VCC=3V,RL=4, THD=10% Bridge,VCC=6V,RL=4, THD=10% Bridge,VCC=3V,RL=4, THD=10% Stereo,RL=8, Po=0.2W Bridge,RL=8, Po=0.5W Stereo,f=100Hz,C3=100F Stereo, BW(-3dB)=20Hz~20kHz Stereo,f=1kHz 9 40 40 0 0.65 0.11 0.9 1.35 0.35 0.5 0.5 30 0.5 50 (Ta=25C,VCC=6V,f=1kHz,unless otherwise specified) Characteristic Symbol Test Conditions Operating Supply Voltage Quiescent Circuit Current Closed Loop Voltage Gain Closed Loop Voltage Gain Channel Balance Output Power Output Power Output Power Output Power Total Harmonic Distortion Total Harmonic Distortion Ripple Rejection Output Noise Voltage Cross Talk Input Resistance VCC ICC AV AV CB PO PO PO PO THD THD RR VNO CT Ri Typ Max 9 Units V mA dB dB dB W W W W % % dB mV dB k -1 0.4 1 24 2.0 100 TEST CIRCUIT 1:STEREO VCC C3 100F TEST CIRCUIT 2:BRIDGE VCC C5 100F 2 2 C4 470F INPUT1 R1 10k C1 100F 7 1 INPUT1 C6 0.1F RL R3 4.7 7 1 R1 10k C2 0.1F R2 4.7 8 8 C1 10F RL INPUT2 R2 10k C2 100F 6 3 5 C5 470F 6 3 C7 0.1F R4 4.7 RL 5 4 C4 0.01F C3 0.1F R3 4.7 4 YOUW ANG ELECTRONI CO. CS LTD 2 UTC2822 SCHEMATIC DIAGRAM LI NEAR I NTEGRATED CI RCUI T 2 Vcc I source CONTROL Vcc 1 OUT 1 Vcc 3 OUT 2 8 NF 1 7 INPUT 1 6 INPUT 2 5 NF 2 4 GND TYPICAL PERFORMANCE CHARACTERISTICS QUIESCENT CURRENT (mA) 8 RIPPLE REJECTION (dB) 0 10 20 30 40 C1=C2 =100F C1=C2 =22F 6 4 2 0 4 8 12 16 10 30 100 300 1000 3000 SUPPLY VOLTAGE (V) FREQUENCY (Hz) YOUW ANG ELECTRONI CO. CS LTD 3 |
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