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| @vic STEREO AUDIO AMPLIFIER DESCRIPTION The AV2025 is a monolithic integrated circuit consisting of a 2 channel power amplifier. It is suitable for stereo and bridge amplifier application of radio cassette tape recorders. AV2025 FEATURES Bridge or stereo configuration. Few External components High Channel isolation Voltage range : 3V to 12V Power on/off no noise Voltage gain up to 45dB(Adjustable with external resistor) Soft clipping Internal Thermal protection Working Voltage down to 3V DIP-16 BLOCK DIAGRAM Temp. protent Startup Circuit Off-Coupling PIN CONFIGURATION AUXBTL 2OUT 2BS 2GNDpp 2GNDp 2FB 2IN FIL 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 VCC 1OUT 1BS 1GNDp 1GNDp 1FB 1IN GND Copyright (c) Avic Electronics Corp. 1 Website: http://www.avictek.com @vic ORDERING INFORMATION PIN 1 2 3 4 5 6 7 8 SYMBOL AUXBTL 2OUT 2BS 2GNDp 2GNDp 2FB 2IN FIL PIN 9 10 11 12 13 14 15 16 AV2025 SYMBOL GND 1IN 1FB 1GNDp 1GNDp 1BS 1OUT VCC ABSOLUTE MAXIMUM RATINGS (Tamb=25C) PARAMETER Supply Output Peak Current JunctionTemperature Storage Temperature SYMBOL Vcc Iop Tj Ts VALUE 15 1.5 150C -40C ~+150C UNIT V A C C ELECTRICAL CHARACTERISTICS (TA=+25,Vcc=9V,f=1KHz,RL=8,unless otherwise specified). PARAMETER Supply Voltage Quiescent Current Quiescent Output Voltage Closed Loop Voltage Gain Channel Balance SYMBOL Vcc Icc Vo(DC) Stereo Av Bridge CB Stereo Stereo THD Bridge Po=250mW,f=1kHz, RL=4,Vcc=9V Vi=-45dBm 49 -1 51 0 0.3 0.5 53 +1 1.5 % dB Vi=0,Stereo TEST CONDITIONS MIN 3 4.0 43 TYP 40 4.5 45 MAX 12 50 5.0 47 dB UNIT V mA V Toltal Harmonic Distortion Copyright (c) Avic Electronics Corp. 2 Website: http://www.avictek.com @vic PARAMETER Input Resistance Channel Separation Ripple Rejection Input Noise Voltage SYMBOL Zi CSR Srip Rg=10K,f=1kHz, RL=4,Po=1W Rg=0,frip=100Hz, Vrip=150mV,Av=45dB BW:20Hz20kHz,Av=200 Rg=0 Rg=10K Vcc=9V,RL=4 Vcc=6V,RL=8 Stereo Output Power Po THD= 10%,f= 1kHz Vcc=6V,RL=4 Vcc=6V,RL=8 Vcc=3V,RL=4 Vcc=9V,RL=8 Bridge Vcc=6V,RL=4 2.8 40 40 1.7 0.7 TEST CONDITIONS MIN TYP 30 55 46 1.5 3 2.3 1.3 1.0 0.6 0.1 4.7 AV2025 MAX UNIT K 3 uV 6 W dB dB VNI APPLICATION CIRCUIT AV2025 ( 1.STEREO ) Copyright (c) Avic Electronics Corp. 3 Website: http://www.avictek.com @vic AV2025 AV2025 ( 2.BRIDGE) TYPICAL PERFORMANCE CHARACTERISTICS Distortion Versus Output Power d(%) 10 d(%) 1 Distortion Versus Output Power Vcc=6V RL=8 Vcc=6V RL=40 1 0.1 0 0.2 0.4 0.6 0.8 1.0 1.2 P0(W) 0 0.2 0.4 0.6 0.8 1.0 1.2 P0(W) Distortion and Output Frequency 10 d(%) 8 P0(W) Stereo Output Power and Supply Voltage 6 Vcc=9V RL=9 P0=1 5W 1 4 f=1KHz d=10% RL=4 2 0.1 10 100 1K 10K 100K F(Hz) 0 0 4 8 12 Vcc(V) Copyright (c) Avic Electronics Corp. 4 Website: http://www.avictek.com |
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