TDA2822M DUAL LOW-VOLTAGE POWER AMPLIFIER DESCRIPTION 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) 8 7 6 - 5 + + Input-(2) - Bias Circuit 1 2 3 4 Output1 VCC Output2 GND ABSOLUTE MAXIMUM RATINGS (Tamb=25℃ ℃,unless otherwise specified) PARAMETER SYMBOL VALUE MIN. MAX. UNIT Supply Voltage Vcc - 15 V Peak Output Current Io - 1 A - 1 - 1.4 Power Dissipation TA =50℃ Tcase=50℃ ℃ PD W Operating Temperature Tamb -20 70 ℃ Storage and Junction Temperature Tstag -40 150 ℃ Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: http://www.wingshing.com Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: [email protected] TDA2822M DUAL LOW-VOLTAGE POWER AMPLIFIER ELECTRICAL CHARATERISTICS (Vcc=6V,Tamb=25℃ ℃) (STEREO) PARAMETER TEST CONDITIONS Supply Voltage Quiescent Output voltage SYMBOL MIN TYP MAX UNIT Vcc 1.8 - 15 V - 2.7 - V - 1.2 - V Vo Vcc=3V Quiescent Drain Current Icc - 6 9 mA Input Bias Current IBA - 100 - nA - 110 - - 20 - - 1 - 0.4 0.65 - - 0.32 - THD=10%, RL=4Ω f=1KHz,Vcc=3 RL=32Ω V Output Power Vcc=9V RL=8Ω THD=10% F=1KHz Po Vcc=6V RL=4Ω Vcc=4.5V RL=4Ω mW W Distortion Po=0.5W,f=1KHz,Vcc=9V,RL=8Ω THD - 0.3 - % Closed Loop Voltage Gain f=1KHz AVF - 40 - dB ΔAv - - ±1 dB f=1KHz RI 100 - - KΩ Rs=10KΩ VNI - 2 - - - 3 - Channel Balance Input Resistance Total Input Noise Rs=10KΩ,B=22Hz~22KHz μV Supply Voltage Rejection f=100Hz C1=C2=100μF Srip 24 30 - dB Channel Seperation f=1KHz CSR - 50 - dB Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: http://www.wingshing.com Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: [email protected] TDA2822M DUAL LOW-VOLTAGE POWER AMPLIFIER Test Circuit: (Stereo) +Vcc C3 10uF 2 R1 10K + 100uF 8 IN (R) 1 _ C1 C6 R3 4.7 6 R2 10K C4 470uF 0.1uF 7 + 5 RL C5 470uF 0.1uF IN (L) 3 _ 100uF C7 C2 R4 4.7 4 RL TYPICAL APPLICATION: 1.Application in Portable Players +3V 2 8 100uF 1 _ 100uF 10K + IN (R) 4.7 6 10K 100uF 5 Wing Shing Computer Components Co., (H.K.)Ltd. Homepage: http://www.wingshing.com 0.1uF 7 + 32/16 HEADPHONE 100uF 3 _ 4 0.1uF IN (L) 4.7 Tel:(852)2341 9276 Fax:(852)2797 8153 E-mail: [email protected] TDA2822M DUAL LOW-VOLTAGE POWER AMPLIFIER 2. Application in Radio Receivers +3V VCC 10uF 2 1 100uF _ IN (R) 4.7 6 10K 100uF 5 100uF 8 10K + 0.1uF 7 + _ 3 4 0.1uF IN (L) 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: [email protected] 32/16