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LM4809, LM4810 typical circuit diagram for two-channel headp

2015-01-05 11:56  
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LM4809, LM4810 typical circuit diagram for two-channel headphone amplifier
Left and right channel audio signals are input M4809/4810(SOP/MSOP packaging) 2, 6 feet respectively. They are output by 1, 7 feet after being amplified by the internal amplifier. They will be added to the respective channel speaker through coupling capacitor. Amplifier gain Av = Rf / Ri. LM4809's pin 5 is connected externalshutdown control. when pin 5 is connected to VDD(high level), it is allowed to work; when pin 5 is grounded(low level), it can not work.