TDA2822 LINEAR INTEGRATED CIRCUIT DUAL LOW VOLTAGE POWER AMPLIFIER DESCRIPTION The Contek TDA2822 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 PIN CONFIGURATIONS OUTPUT 1 1 Vcc 2 OUTPUT 2 3 GND 4 8 Contek TDA2822 NF 1 7 INPUT 1 6 INPUT 2 5 NF 2 BLOCK DIAGRAM V CC 2 INPUT1 NP1 7 1 OUTPUT1 3 OUTPUT2 8 INPUT2 6 NP2 5 Contek 4 GND Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 1 TDA2822 LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATINGS (Ta=25 PARAMETER C) SYMBOL Supply Voltage Output Peak Current Power Dissipation VALUE VCC IO(peak) PD Operating Temperature Storage Temperature Topr Tstg ELECTRICAL CHARACTERISTICS(Ta=25 PARAMETER Operating Supply Voltage Quiescent Circuit Current Closed Loop Voltage Gain Closed Loop Voltage Gain Channel Balance Output Power SYMBOL VCC ICC AV AV CB PO Output Power PO Output Power PO Output Power PO Total Harmonic Distortion Total Harmonic Distortion Ripple Rejection Output Noise Voltage Cross Talk Input Resistance TEST CIRCUIT 1:STEREO C3 100 mF C5 100 mF 2 C4 470 mF 8 C1 100 mF R3 4.7W Contek 3 5 R2 10kW C2 100 mF RL -1 0.4 9 40 40 0 0.65 0.9 24 100 9 UNIT V mA dB dB dB W 1 0.11 W 1.35 W 0.35 W 0.5 0.5 30 0.5 50 % % dB mV dB kW 2.0 1 R1 10kW 8 C1 10 mF C2 0.1 mF RL R2 4.7W 6 3 R4 4.7W RL 5 4 C4 0.01 mF Contek Microelectronics Co.,Ltd. CONTEK MAX VCC Contek C5 470 mF C7 0.1 mF 4 TYP 1.8 7 INPUT1 C6 0.1 mF 6 INPUT2 MIN 2 1 R1 10kW C C TEST CIRCUIT 2:BRIDGE VCC 7 INPUT1 V A W C, VCC=6V, f=1kHz, unless otherwise specified) TEST CONDITIONS Vi=0 Stereo Bridge Stereo Stereo,VCC=6V,R L =4W, THD=10% Stereo,VCC=3V,RL=4W, THD=10% Bridge,VCC=6V,R L=4W, THD=10% Bridge,VCC=6V,R L=4W, THD=10% Stereo,RL=8W, Po=0.2W Bridge,RL=8W, Po=0.5W Stereo,f=100Hz,C3=100mF Stereo,BW(-3dB)=20Hz ~20kHz Stereo,f=1kHz THD THD RR VNO CT Ri UNIT 15 1 at T amb=50 C 1.0 at T case=50 C 1.4 -20 ~ +70 -40 ~ +150 http://www.contek-ic.com E-mail:sales@contek-ic.com C3 0.1 mF R3 4.7W 2 TDA2822 LINEAR INTEGRATED CIRCUIT 8 RIPPLE REJECTION (dB) QUIESCENT CURRENT (mA) TYPICAL PERFORMANCE CHARACTERISTICS 6 4 2 0 10 C1=C2 =22 mF 20 30 C1=C2 =100 mF 40 0 4 8 12 16 10 SUPPLY VOLTAGE (V) 30 100 300 1000 3000 FREQUENCY (Hz) SCHEMATIC DIAGRAM Contek 2 Vcc I source CONTROL Vcc Vcc 1 3 OUT 1 OUT 2 8 7 6 5 4 NF 1 INPUT 1 INPUT 2 NF 2 GND Contek Microelectronics Co.,Ltd. CONTEK http://www.contek-ic.com E-mail:sales@contek-ic.com 3