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Hi, Team,
My customer met some issue for LM384, could you help check it?
They found the noise was very big by using LM384, which cover the original audio signal . If we remove the LM384, the audio signal is clean. We try to use the battery to give the power supply, the noise still very big. Could you give some suggestion for this? Thanks!
The SCH as followed:
The input and output signal.