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IHus.1
Associate II
December 15, 2021
Solved

TDA7575B Based Audio Amplifier Problem

  • December 15, 2021
  • 3 replies
  • 957 views

I have designed a TDA7575B based audio amplifier, see attached screenshot image. The tone control as configured, will the input signal not be below standard 2v line input voltage that the TDA would typically be used with? I dont know how to add a preamp. Can someone please clarify or help me to get it designed. I apologies and I am new to electronics.0693W00000HojqjQAB.jpg

    This topic has been closed for replies.
    Best answer by Piranha

    Making a million topics on the same issue just pollutes the forum...

    Anyway. Even if that is not strictly required, this version with negative inputs connected to GND through a separate C11 and C18 is 100% safe and will definitely work.

    3 replies

    Piranha
    PiranhaBest answer
    Principal III
    December 29, 2021

    Making a million topics on the same issue just pollutes the forum...

    Anyway. Even if that is not strictly required, this version with negative inputs connected to GND through a separate C11 and C18 is 100% safe and will definitely work.

    Peter BENSCH
    Technical Moderator
    January 11, 2022

    Hi, @IHus.1​,

    You had also posted this and the former question on Stackexchange.

    Can this question here be taken as answered?

    Regards

    /Peter

    IHus.1
    IHus.1Author
    Associate II
    January 12, 2022

    Yes sir I got it done and now waiting for the fabricated PCBs. Stachexchage is a great platform. Thank you very much!