Hi Fi headset Amplifier based LM 4880

Published:2013/3/12 1:21:00 Author:Ecco | Keyword: Hi Fi , headset Amplifier | From:SeekIC

LM4880is adualaudioHiFiamplifierICfromNationalSemiconductor. This headphone amplifier circuitis specificallydesignedtoproducehigh qualityaudiooutputwith aminimum amountof components.LM4880integratedcircuitcapable of delivering250mWper channelinto8ohmload. IChas aTHDof 0.1%andhas avoltage range of2.7Vto5VDC. In thecircuit shownabove,the resistorsR1andR2arethe feedbackresistor.C4andC5areDCinputdecouplingcapacitor.FilteringcapacitorC3providepowerand reducenoise.The amplifierautomatically shuts offwhena lowlogiclevelis givento the shutdownpin(pin5). The capacitorC6isworkingathalf-supplyfiltering.



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