Dual Power Amplifier

Silicore DUAL POWER AMPLIFIER GENERAL DESCRIPTION The D2822 is a monolithic integrated circuit in 8 lead Minidip package. It is in tended for use as dual audio power amplifier in portable D2822 cassette tape players and radios. FEATURES Dual Low-voltage power a mplifier Supply voltage down to 1.8V Low cro sso v er d isto rtio n Outline Drawing Low quiescent cu rrent Bridge or stereo configuratio n BLOCK DIAGRAM NF1 8 IN1 7 IN2 6 NF2 5 PINNING OUTPUT(1) Vcc OUTPUT(2) GROUND 1 2 D2822 3 4 8 7 6 5 INPUT-(1) INPUT+(1) INPUT+(2) INPUT-(2) _ + BIAS CIRCUIT + _ 1 OUT1 2 Vcc 3 OUT2 4 GND SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 1/7 CHMC Silicore MAXIMUM RATINGS Characteristics Supply Voltage Output Peak Current Total Power Dissipation(at Tamb =50 °C) Total Power Dissipation(at Tcase=50°C) Operating Ambient Temp erature Range Storage Temp erature Range Symbol Vcc Ipk PD PD Ta Tstg D2822 Value 15 1 1 1.4 -20~70 -40~150 Unit V A W W °C °C ELECTRICAL CHARACTERISTICS 1. Stereo Test Circuit(Unless otherwise specified Vcc=6V,Ta mb=25°C) Characteristic Supply Voltage Quiescent Output Voltage Quiescent Drain Current Input Bias Current Symbol Vcc Vo Id IBA d=10% f=1kHz Vcc=3V RL=4 ¦¸ Vc c= 3V RL =3 2¦¸ d=10% f=1kHz Vcc=9V RL=8 ¦¸ Vc c= 6V RL =4¦¸ V c c= 4. 5 V RL= 4 ¦¸ Po=0.5W RL =8¦¸ f = 1k Hz Vc c =9 V f=1kHz Vcc=3V Test Condition Min. Typ. Max. 1.8 2.7 1.2 6 100 110 20 1 0.65 0.32 0.3 40 ¡À f=1kHz Rs=10k ¦¸ Rs=10k ¦¸ B = Cu re A B = 22 Hz to2 2 kH z F 24 100 2 ¦Ì 3 30 50 dB dB 1 9 15 Unit V V V mA nA mW Output Power (Each Channel) Po 0.4 W Distortion Closed Loop Vo ltage Gain Channel Balance Input Resistance Total Input Noise Supply Voltage rejection Channel Separation THD Avf ∆Av f Ri VNI SVR CSR % dB dB k ¦¸ V f=100Hz C1 =C2=100¦Ì f=1kHz SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 2/7 CHMC Silicore Characteristic Supply Vo ltage Quiescent Drain Current Output Offset Voltage (Between th e Outputs) Input Bias Current Sym -bol Vcc Id Vos Ib d=10% f=1kHz Vcc=9V RL=16¦¸ Vcc=6V RL=8 ¦¸ Vcc=4.5V RL=8 ¦¸ Vcc=4.5V RL=4 ¦¸ Vcc=3V RL=4 ¦¸ Vcc=2V RL=4 ¦¸ f=1kHz RL=∞ RL=8 ¦¸ Test Condition Min. 1.8 D2822 2.Bridge Test Circuit (Unless otherwise specified Vcc=6V,Tamb=25°C) Typ. Max. 15 6 ¡À 100 2 1.35 0.7 1 200 350 80 0.2 40 100 Curve A B=22Hz to 22kHz 2.5 ¦Ì Rs=10k ¦¸ Supply Voltage Rejection Power Bandwidth (-3dB) SVR B f=100Hz RL=8 ¦¸ Po =1 W 3 40 120 dB kHz V 9 50 Unit V mA mV nA W Output Power Po mW % dB k ¦¸ Distortion Closed Loop Vo ltage Gain Input Resistance Total Input Noise THD Po=0.5W RL=8 ¦¸ Avf Ri VNI f=1kHz f=1kHz Rs=10k ¦¸ SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 3/7 CHMC Silicore TEST CIRCUIT 1.STEREO TEST CIRCUIT +Vcc C3 10uF 2 IN (L) R1 10K 100uF 7 8 C1 6 5 100uF C2 4 + _ C4 470uF 1 C6 R3 4.7 + _ C5 470uF 3 C7 R4 4.7 0.1uF 0.1uF D2822 RL IN (R) R2 10K RL 2.BRIDGE TEST CIRCUIT +Vcc C3 10uF 2 IN 7 R1 10K + - 1 R2 4.7 C1 C4 0.1uF RL 8 6 + - 3 10uF 5 R3 4.7 C5 0.1uF C2 10nF 4 SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 4/7 CHMC Silicore APPLICATION CIRCUIT 1. Typical application in portable players +3V D2822 2 IN (L) 7 + _ 100uF 0.1uF 4.7 6 5 100uF + _ 4 100uF 0.1uF 4.7 3 32/16 HEADPHONE 1 10K 100uF IN (R) 10K 8 2. Application circuit for portable radio receivers +Vcc=6V 100uF 47nF 0.22uF 1K IN 21 3 33uF VCO STOP 22K 9 7 10 TEA1330 100uF 47K 11 8 270 16 15K 12 5 680nF 15nF 3.9K 0.1uF 15nF 3.9K 47K 100uF 8 D2822 6 + _ 5 4 3 220uF 0.1uF 4.7 4 13 15 47 0.47uF LED 680 47K 6 4 47K 7 + _ 1 0.1uF 2 220uF 0.1uF 4.7 4 220uF 0.1uF 14 1.0uF 5K 19K MONITOR SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 5/7 CHMC Silicore 3. Portable radio cassette players TDA7211 FM TUNER TDA 7220 AM/FM RADIO TEA 1330 STEREO DECODER D2822 TDA 2320 A PRE AMPLIFIER SWITCH D2822 AUDIO AMPLIFIER 32/16 4. Portable stereo radios TDA7220 AM/FM RADIO TDA7211 FM TUNER TEA 1330 STEREO DECODER D2822 AUDIO POWER AMPLIFIER 5. Low cost application for portables (using only one 100µF output capacitor) +3V 10uF 2 IN (L) 7 + 0.1uF 100uF _ 1 10K 100uF 8 4.7 6 5 + 3 4 0.1uF _ 32/16 IN (R) 10K 100uF 4.7 SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 6/7 CHMC Silicore CHARACTERISTICS CURVES D2822 SHAOXING SILICORE TECHNOLOGY CO.,LTD www. Silicore. com. cn 7/7 CHMC