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Voltage-controlled 4W audio amplifier circuit diagram

2015-01-01 11:28  
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Voltage-controlled 4W audio amplifier circuit diagram
Voltage-controlled 4W audio amplifier uses audio amplification IC TDA103Ato provide4W of output power. The control voltage is3.5 ~ 8V, and controlcharacteristic is logarithmic with controlling rangein 80dB.