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Newbie help - audio amplifier (BA5415A)

Discussion in 'Audio' started by Ballistical935, Aug 2, 2017.

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  1. Ballistical935

    Ballistical935

    1
    0
    Aug 2, 2017
    I managed to salvage a ba5415a IC and I'm trying to turn it into an audio amplifier (mono) and I'm struggling to decipher the circuit
     

    Attached Files:

  2. Audioguru

    Audioguru

    2,730
    614
    Sep 24, 2016
    Your circuit is wrong because the second amplifier has no input signal. The circuit in the datasheet applies the feedback signal of the first amplifier to the pin 9 inverting input of the second amplifier so the speaker gets a bridged output.
     

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