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TDA7575B Based Audio Amplifier Problem

IHus.1
Associate II

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

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1 ACCEPTED SOLUTION

Accepted Solutions
Piranha
Chief II

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.

View solution in original post

3 REPLIES 3
Piranha
Chief II

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
ST Employee

Hi, @IHus.1​,

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

Can this question here be taken as answered?

Regards

/Peter

In order to give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
IHus.1
Associate II

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