DAC in Dual Differential mode - schematic? - diyAudio
Go Back   Home > Forums > Source & Line > Digital Source

Digital Source Digital Players and Recorders: CD , SACD , Tape, Memory Card, etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 17th August 2005, 12:24 AM   #1
diyAudio Member
 
spavleski's Avatar
 
Join Date: Aug 2005
Location: Belgrade
Send a message via Skype™ to spavleski
Question DAC in Dual Differential mode - schematic?

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
  Reply With Quote
Old 17th August 2005, 02:39 AM   #2
diyAudio Member
 
Join Date: Dec 2003
Location: Sydney
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
  Reply With Quote
Old 17th August 2005, 02:44 AM   #3
diyAudio Member
 
Algar_emi's Avatar
 
Join Date: Oct 2002
Location: Canada, Qc
Do a search and ask for the Assemblage 3.0. It is using differential DAC.

Bye...
  Reply With Quote
Old 17th August 2005, 05:42 AM   #4
diyAudio Member
 
Join Date: Oct 2001
Location: .
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/ol...t/d1_servm.pdf
  Reply With Quote
Old 17th August 2005, 10:26 AM   #5
ks-JPN is offline ks-JPN  Japan
diyAudio Member
 
Join Date: Mar 2005
Location: Japan
TDA1541A Dual Differential DAC board is here.

http://homepage2.nifty.com/electrart/index.htm
  Reply With Quote
Old 17th August 2005, 07:36 PM   #6
diyAudio Member
 
spavleski's Avatar
 
Join Date: Aug 2005
Location: Belgrade
Send a message via Skype™ to 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..
  Reply With Quote
Old 18th August 2005, 12:09 AM   #7
guido is offline guido  Netherlands
diyAudio Member
 
guido's Avatar
 
Join Date: Mar 2002
Location: diepe zuiden
Quote:
Originally posted by ks-JPN
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
__________________
GuidoB
  Reply With Quote
Old 18th August 2005, 05:56 AM   #8
ks-JPN is offline ks-JPN  Japan
diyAudio Member
 
Join Date: Mar 2005
Location: Japan
BB PCM1704 differntial DAC schematic is here.
http://easy-audio-kit.hp.infoseek.co...4-4Dmanual.pdf
Picture is here.
http://easy-audio-kit.hp.infoseek.co...e13/image1.jpg
  Reply With Quote
Old 18th August 2005, 05:56 AM   #9
ks-JPN is offline ks-JPN  Japan
diyAudio Member
 
Join Date: Mar 2005
Location: Japan
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.
  Reply With Quote
Old 18th August 2005, 06:47 AM   #10
banana is offline banana  Hong Kong
diyAudio Member
 
Join Date: Feb 2003
Location: Hong Kong
doesn't just pull down pin 10 will do?
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fully differential opamps and common mode voltage rtarbell Solid State 1 15th August 2006 07:13 AM
differential design, common mode noise rejection Sebastiaan Solid State 0 17th April 2006 08:16 PM
Dual differential mode inductors in a bridged output lowpass filter BWRX Class D 3 17th November 2005 03:39 PM
transformer coupled TDA1547 differential mode DoctorWho70 Digital Source 1 23rd July 2004 08:10 AM
PCM1716 in differential mode wmincy Digital Source 3 28th September 2003 07:55 AM


New To Site? Need Help?

All times are GMT. The time now is 11:04 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2