EEVblog Electronics Community Forum

Electronics => Beginners => Topic started by: Katanara on February 16, 2023, 04:21:43 pm

Title: TDA7294 and the single supply
Post by: Katanara on February 16, 2023, 04:21:43 pm

Greetings! I have a question about the power source for TDA7294. It implies a split supply. I have previously used +/-24V. Now I need to use the 0 and 48V power rails. 0 to Vs-, 48 to Vs+, and the mid 24V to pins that are supposed to be connected to GND.
Will it work? There are some worries about this case and I think I could not clearly understand the datasheet.

Title: Re: TDA7294 and the single supply
Post by: strawberry on February 16, 2023, 04:51:43 pm

resistor divider and some transistor buffer
input and output DC blocking capacitors
for mute/stby  some transistor for level shifting
easy

Title: Re: TDA7294 and the single supply
Post by: Katanara on February 16, 2023, 04:59:23 pm

Not so easy for a newbie  :)
Blocking capacitors are of course needed.