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-   -   Alternatives to Zetex DDFA (http://www.diyaudio.com/forums/class-d/186439-alternatives-zetex-ddfa.html)

Nicholas Bedworth 5th April 2011 07:26 AM

Alternatives to Zetex DDFA
 
Are there any new designs out there that are closed loop and have similar stellar performance?

iand 10th April 2011 10:39 AM

Quote:

Originally Posted by Nicholas Bedworth (http://www.diyaudio.com/forums/class-d/186439-alternatives-zetex-ddfa-post2528095.html#post2528095)
Are there any new designs out there that are closed loop and have similar stellar performance?

Not that I'm aware of -- Zetex (bought by Diodes Inc.) had unique circuit architecture IP giving some fundamental performance advantages, and I don't know of anything comparable from anyone else.

Unfortunately Zetex only supported the OEM market, and seem to have had much less success in that than was predicted -- my guess is that the big-volume Far East OEM audio manufacturers (home cinema etc) care more about the fact there are cheaper class-D solutions available than the fact that Zetex's is better.

Which is a pity, having designed the crucial low-jitter circuit circuits for Zetex we got to both listen to and measure the DDFA and were blown away...


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