TPA3255: DC blocking input capacitors

Tomasz,

I would always use high quality components. We have used both Tantilum and ceramic without issue. Concerning Noise and THD, we don't see a difference between these two.

Regards,

-Adam

Hi Adam,

thank you for your replay. I didn't concern tantalum capacitors, because they are bipolar and absolutely do not like revere biasing. I guess tantalum will produce nonlinear distortion - tiny but noticeable concerning ultra high audio performance of the TPA3255 ;)

I tested (measured) many designs using different DC blocking capacitors and even on my audio analyzer with limited THD+N range just to -100bB differences were measurable.

On the TPA3255 electrolytic caps are used as DC blocking caps... I considered using ceramics - 10uF 0805 at least 25V X7R types - what do you think?

Cheers,

Tomasz

That seems like a good choice to me!

Thank you :)