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-   -   Will this be the breakthrough on the consumer market? (http://www.diyaudio.com/forums/class-d/118348-will-breakthrough-consumer-market.html)

el`Ol 28th February 2008 04:44 AM

Will this be the breakthrough on the consumer market?
 
One chip, digital input, feedback, integrated EQ
http://www.ti.com/corp/docs/landing/...tal_bc_tas5706

audiosteve 28th February 2008 06:36 AM

The TI part is hardly a breakthrough. This one with built in SRC, ADC and DSP has been out for a while and is in quite a few consumer products already.

http://www.cirrus.com/en/products/pro/detail/P1109.html

el`Ol 28th February 2008 07:53 AM

Does it have feedback?
Maybe Iīm wrong, but in my opinion this is the reason why AB still dominates the chip amp market, and why the Tripath failed, despite of its sonic superiority.

phase_accurate 28th February 2008 09:55 AM

Quote:

Does it have feedback?
Maybe Iīm wrong, but in my opinion this is the reason why AB still dominates the chip amp market, and why the Tripath failed, despite of its sonic superiority.
You may call me stupid but I don't get what you want to tell us with this statement since both of these use feedback.

Regarding breakthrough:

I think the closer to a linear amp a switching amp behaves the more it will succeed.

Regards

Charles

el`Ol 28th February 2008 10:18 AM

I donīt know anything about the Crystal, but the Tripath didnīt have the power transistors in the feedback loop, making it very load (and PSU) dependent.

phase_accurate 28th February 2008 10:28 AM

I don't know about the "chip-only" solutions but the high-power versions (i.e. the modulator/driver modules that you had to use with a pair of power MOSFETs) definitely used feedback from the power stage. What they didn't was use was post-filter feedback for unknown reasons.

Regards

Charles

el`Ol 28th February 2008 10:33 AM

TI also donīt have post-filter feedback, but they claim their chip even achives good results with the backlight PSU of an LCD TV.

Gyula 2nd March 2008 11:20 PM

Hi!

Do you know where is the feedback in this 5706 amp?

Gyula


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