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| TDA2822M DESCRIPTION DUAL LOW-VOLTAGE POWER AMPLIFIER The TDA2822M is a monolithic integrated circuit in 8 lead Minidip package. It is intended for use as dual audio power amplifier in portable cassette players and radios. FEATURE LOW CROSSOVER DISTORSION LOW QUIESCENT CURRENT SUPPLY VOLTAGE DOWN TO 1.8V BRIDGE OR STEREO CONFIGURATION PIN CONNECTION Input-(1) Input+(1) Input+(2) Input-(2) 8 7 6 5 - + Bias Circuit + - 1 Output1 2 VCC 3 Output2 4 GND ABSOLUTE MAXIMUM RATINGS (Tamb=25,unless otherwise specified) PARAMETER Supply Voltage Peak Output Current Power Dissipation Operating Temperature Storage and Junction Temperature Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: http://www.wingshing.com SYMBOL Vcc Io TA =50 Tcase=50 PD Tamb Tstag VALUE MIN. -20 -40 MAX. 15 1 1 1.4 70 150 UNIT V A W Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: wsccltd@hkstar.com TDA2822M DUAL LOW-VOLTAGE POWER AMPLIFIER ELECTRICAL CHARATERISTICS (Vcc=6V,Tamb=25) (STEREO) PARAMETER Supply Voltage Quiescent Output voltage Quiescent Drain Current Input Bias Current THD=10%, RL=4 f=1KHz,Vcc=3 RL=32 V TEST CONDITIONS SYMBOL Vcc MIN 1.8 - TYP 2.7 1.2 6 100 110 20 1 0.65 0.32 0.3 40 2 3 30 50 MAX 15 9 1 - UNIT V V V mA nA mW Vcc=3V Vo Icc IBA Output Power THD=10% F=1KHz Vcc=9V RL=8 Vcc=6V RL=4 Vcc=4.5V RL=4 Po 0.4 - W Distortion Closed Loop Voltage Gain Channel Balance Input Resistance Total Input Noise Po=0.5W,f=1KHz,Vcc=9V,RL=8 f=1KHz THD AVF Av 100 24 - % dB dB K V dB dB f=1KHz Rs=10K Rs=10K,B=22Hz~22KHz RI VNI Srip CSR Supply Voltage Rejection Channel Seperation f=100Hz C1=C2=100F f=1KHz Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: http://www.wingshing.com Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: wsccltd@hkstar.com TDA2822M Test Circuit: (Stereo) DUAL LOW-VOLTAGE POWER AMPLIFIER +Vcc C3 10uF 2 IN (L) R1 10K 7 + _ C4 470uF 1 C6 R3 4.7 + _ 4 C5 470uF 3 C7 R4 4.7 8 100uF C1 6 0.1uF RL IN (R) R2 10K 5 100uF C2 0.1uF RL 32/16 HEADPHONE TYPICAL APPLICATION: 1.Application in Portable Players +3V 2 IN (L) 7 + _ 100uF 100uF 4.7 6 5 + _ 4 100uF IN (R) 10K 100uF 4.7 Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: http://www.wingshing.com Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: ic@wingshing.com 0.1uF 3 0.1uF 10K 8 1 TDA2822M 2. Application in Radio Receivers DUAL LOW-VOLTAGE POWER AMPLIFIER +3V VCC 10uF 2 IN (L) 7 + 100uF 0.1uF 100uF 10K 8 _ 1 4.7 6 + 3 4 32/16 IN (R) 10K 100uF 4.7 FEATURE DIAGRAM Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: http://www.wingshing.com Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: ic@wingshing.com 0.1uF 5 _ |
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