d2audio Full digital audio

[okkyn]

Has anybody known d2audio chips:

http://www.d2audio.com/7/D2Audio_::_...ower_Supplies/

Spec-wise looks impresive, better than TI TAS5015/12. They made 2 chips, one for stereo hifi, and the other for home teater. I wonder whether theys are diy-able or not, I couldn't find any datasheet...

[luka]

Hi

This is all costom chip, so there is possibility that you can't even buy them... No datasheet because it is costom,....

[Joel T]

There seem to be a few versions of those.

At my glance, theres 2 seriers 814 and 914, in total 5 chips.

The 914 seems to perform better, and supports more channels. The 814 supports 4 channels, and should be tandemd for 7.1-operation.

The 814-series is probably targeted at TV-speakers, and the 914 at surround amps.

D2-91413-LR seems to be the most hi-end version of the lot.

D2-81412-LR could probably be used for a 2 channel 100w-amp, acording to http://www.d2audio.com/files/D2-PS-M...v1.2.0-web.pdf

[BWRX]

Originally posted by okkyn
Spec-wise looks impresive, better than TI TAS5015/12.

They're better spec-wise because they incorporate feedback unlike the TI chips.

Marketing babble: "Digital feedback compensates for speaker variation."
Translation: The analog post filter feedback signal goes through an ADC.

Marketing babble: "Digital power supply correction (DPSC) addresses power supply fluctuation."
Translation: They use a regulated switching supply.

[luka]

Hi BWRX

That is so true. I'm like right now...