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TPA6112A2: TPA6112A2 input VIN is 63mV at the audio band of 50HZ or 100Hz ,but the output Vo is 1V or 1.7V ,is too low ,so i need you help.

Part Number: TPA6112A2

TPA6112A2 input VIN is 63mV at the audio band of 50HZ or 100Hz ,but the output Vo is 1V or 1.7V ,is too low ,so i need you help.