DAC in Dual Differential mode - schematic?

[spavleski]

Hi, I've been searching the web in order to find some schematic of DAC in dual differential mode (dual PCM1704 preferred), but without success.

Any hint?

BR// spavleski

 

[Extreme_Boky]

I can send you circuit diagram of my DENON 1650SR. It has dual differential configuration ie 4 X 1704. With a bit of an effort, you can follow this through and make it balanced analog out.

You can e-mail me using forum...

Regards,
Extreme_Boky

 

[Algar_emi]

Do a search and ask for the Assemblage 3.0. It is using differential DAC.

Bye...

 

[rfbrw]

Passlabs D1, Twin PCM63'S per channel. You can replace them with PCM1704s and the SM5842 with the DF1704/6 or the SM5847.

http://www.passlabs.com/downloads/old product/d1_servm.pdf

 

[ks-JPN]

TDA1541A Dual Differential DAC board is here.

http://homepage2.nifty.com/electrart/index.htm

 

[spavleski]

Thanks guys for Your fast replay.

What I saw is that usually the very best equipments (CDP, DACs) in previous years are (as a rule) using (at least) 2 X PCM1704K in Dual Differential configuration.
I'm DIY guy, so at the moment sound interesting to learn more about dual mode..

 

[guido]

TDA1541A Dual Differential DAC board is here.

http://homepage2.nifty.com/electrart/index.htm

Interesting stuff. Made something similar without a cpld (some logic and a GAL) and was now looking at a cpld version.

But if it's already done, why invent it again
I have some questions:

Is the cpld able to handle 32 bit samples (7210 output) as wel as 7220 output (16 bit)?
Do you share the source-code or can one obtain a cpld?

I'm sorry if this is addressed to the wrong person (cant read the pages) and that i'm asking this on the forum (no mail button).

Thanks!

Guido

PS, Ray they are using the 'parallel' mode of the 1541, maybe they have fixed the LS

 

[ks-JPN]

BB PCM1704 differntial DAC schematic is here.
http://easy-audio-kit.hp.infoseek.co.jp/DAC1704-4Dmanual.pdf
Picture is here.
http://easy-audio-kit.hp.infoseek.co.jp/ex-pict/page13/image1.jpg

 

[ks-JPN]

Hello GuideB,

It is possible to translate from Japanese into English with altavista.

You addresssed wrong person. I am not a designer.

The mail address of the TDA1541 Differential DAC designer is described in the second line from the bottom.

 

[banana]

doesn't just pull down pin 10 will do?

 

[rfbrw]

PS, Ray they are using the 'parallel' mode of the 1541, maybe they have fixed the LS

as well as the MSB?
I'd leave well alone if I were you.

 

[stolbovoy]

Here is Parasound DAC 1600hd schematics (8412->PMD100->4*PCM63)
http://mysite.verizon.net/vze37s8m/

 

[leonidp]

DAC in Dual Differential mode

Is there any posibilty to get additional info about TDA1541A dual kits from ks-JPN? Can I order the kit? How much does it cost?

 

[ks-JPN]

Re: DAC in Dual Differential mode

Is there any posibilty to get additional info about TDA1541A dual kits from ks-JPN? Can I order the kit? How much does it cost?

I paid 17000 YEN (about 160USD) for TDA1541A Dual Differential with SAA7220P 4fs DAC kit.
Mail to mld17877@nifty.com , You may get more info from kit designer