LM4911 typical application circuit diagram for dual-channel amplifier

Published:2011/8/22 22:16:00 Author:Rebekka | Keyword: MSOP, dual-channel amplifier | From:SeekIC

Left and right channel audio signals areinputto 1,5 feet of LM4911 (MSOP packaging)respectively. They are output by 9, 7, 8 feet after being amplified by the internal amplifier. They will be added to the respective channel speaker through coupling capacitor. Maximum power of the amplifier is PDMAX = VDD2/2π2RL (output capacitive coupling mode). LM4911's 2 feetis connected shutdown Control outside. It is allowed to work when 2 feet connected VDD (high level). It is not allowed to work when then low (ground) because it will reduce chip power consumption.



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