reference voltage at TDA1543

[weissi]

Are there any improvements when biasing the output with an constant current?
If anyone has some experience with modifications on the reference voltage circuitry, plz share it!!

Regards...

 

[Elso Kwak]

Ref pin # 7 at TDA1543

Hi weissi,
I found the sound best when no resistor was connected to this pin to null the offset. I have only connected a 0.1 µF polypropylene cap from this pin to ground.😉

 

[weissi]

Thanks Elso!

good to hear that from a proved source.....hard enough to design a pcb without testing it before.....

Regards