Go Back   Home > Forums > Source & Line > Digital Line Level

Digital Line Level DACs, Digital Crossovers, Equalizers, 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 21st December 2012, 12:52 AM   #1731
diyAudio Member
 
Join Date: Jan 2011
Location: sitting down
thanks Ian,

I had an early version of that document.

nonetheless, it is still unclear as to where to power the board.

It would be nice if you can post a detilaed picture of your setup.

regards.

Last edited by necplusultra; 21st December 2012 at 01:01 AM.
  Reply With Quote
Old 21st December 2012, 01:09 AM   #1732
diyAudio Member
 
iancanada's Avatar
 
Join Date: Dec 2009
Location: Toronto
Quote:
Originally Posted by necplusultra View Post
thanks Ian,

I had an early version of that document.

nonetheless, it is still unclear as to where to power the board.

It would be nice if you can post a detilaed picture of your setup.

regards.
Please see the DC power cable,
Attached Images
File Type: jpg Si570Board.JPG (200.9 KB, 355 views)
File Type: jpg IsolatorRunning.JPG (414.2 KB, 303 views)
File Type: jpg system.JPG (157.4 KB, 291 views)
__________________
Ian GBV - I2S to PCM converter board & FIFO KIT
http://www.diyaudio.com/forums/group...ml#post3662743
  Reply With Quote
Old 21st December 2012, 08:21 AM   #1733
DUC985 is offline DUC985  Germany
diyAudio Member
 
Join Date: Oct 2004
Location: NRW
not sure if this is the right place to ask that question, but i will give it a try. Basically i'm considering to run my Buffalo DAC synchronous once the SIC570 clock is available.
What now came into my mind could be an issue with that config is how to be able to use DSD. Plan is is to use Amanero -> Otto -> FIFO -> Buffalo II.
How would the Buffalo get the clock signal when running synchronous in DSD mode ?
  Reply With Quote
Old 21st December 2012, 10:05 AM   #1734
qusp is offline qusp  Australia
diyAudio Member
 
qusp's Avatar
 
Join Date: Oct 2009
Location: Brisbane, Australia
wont work, fifo doesnt do DSD
  Reply With Quote
Old 21st December 2012, 10:06 AM   #1735
diyAudio Member
 
Join Date: Jan 2011
Location: sitting down
Hi Ian

I tested the isolator with power on clock board at 5v.

the input voltage on fifo side is 3.3v which is good.

the voltage on the clock side is 1.7v which is not good.
so I unsoldered all the regulator circuit on the clcok side and the voltage now reads 2.3v on the L pad of the regulator circuit.

everything else is still soldered in place. just the clock regulator circuit is removed. the L pad should read 5v.

any ideas?
regards.
  Reply With Quote
Old 21st December 2012, 10:31 AM   #1736
DUC985 is offline DUC985  Germany
diyAudio Member
 
Join Date: Oct 2004
Location: NRW
i know that the FIFO does not work with DSD, the Otto switch would route the I2S signal to the DAC. The question is related to the syncronous clock source for the Buffalo ...
  Reply With Quote
Old 21st December 2012, 10:45 AM   #1737
qusp is offline qusp  Australia
diyAudio Member
 
qusp's Avatar
 
Join Date: Oct 2009
Location: Brisbane, Australia
that wont work, fifo runs asynchronously, even with sync clock out, it will be running with no relation to the amanero board timing, how could it be synchronous? also the fifo needs to choose a samplerate and thus clock, based on the input. with no input it wont do anything, bad enough with the dual clock board, even worse with the Si570 which chooses among many different clock speeds
  Reply With Quote
Old 21st December 2012, 11:09 AM   #1738
DUC985 is offline DUC985  Germany
diyAudio Member
 
Join Date: Oct 2004
Location: NRW
thats what i guessed already, anyhow i don't care about DSD much, so conclusion is just to skip the OTTO switch and omit DSD. Makes live easier anyhow ...
  Reply With Quote
Old 21st December 2012, 12:17 PM   #1739
diyAudio Member
 
iancanada's Avatar
 
Join Date: Dec 2009
Location: Toronto
Quote:
Originally Posted by necplusultra View Post
Hi Ian

I tested the isolator with power on clock board at 5v.

the input voltage on fifo side is 3.3v which is good.

the voltage on the clock side is 1.7v which is not good.
so I unsoldered all the regulator circuit on the clcok side and the voltage now reads 2.3v on the L pad of the regulator circuit.

everything else is still soldered in place. just the clock regulator circuit is removed. the L pad should read 5v.

any ideas?
regards.
Could you show me a close picture of your configuration and your clock and isolator board?

Ian
__________________
Ian GBV - I2S to PCM converter board & FIFO KIT
http://www.diyaudio.com/forums/group...ml#post3662743
  Reply With Quote
Old 21st December 2012, 02:35 PM   #1740
diyAudio Member
 
Join Date: Dec 2004
Location: the Hague
Default ....and now something completely different....

to Ian and all,

I want to share my initial impressions about using the Spidf-Fifo-Clockboard combination. Right out of the box I connected my SBTouch, which was hardly used in the past months because of unfullfilling soudquality, and it was frm the first second a relevation! It sounded like music, which it did never before.
Not connected to my BIII buffalo, but with the nice U-fl connectors and cabels into I2S inputs of Doede new 1794A Dac.
WaneIO connected to the I2S backdoor of the Spdif-board.For playing my canned CD's through XXHighEndPlayer on my PC. This was already a splendid combi but it improved. The crazy thing is, I am talking about the generic clocks that where provided with the set by Ian, just for checking purpose. I look forward to tell you more after implementation of all the proposed refinements to come. Such as better clocks, (I ordered Chrystek957). And waiting for parts to get the Isolator and the managementboard complete... And Lipo4 batt. for the clock?
I will for shure come back on this.
Happy holydays
  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
XMOS-based Asynchronous USB to I2S interface Lorien Digital Source 2043 17th April 2014 03:31 PM
exaU2I - Multi-Channel Asynchronous USB to I2S Interface exa065 exaDevices 1357 3rd March 2014 08:51 PM
DAC chip selection + I2S jitter questions drwho9437 Digital Line Level 2 26th July 2010 12:50 PM
Simple FIFO to I2S CPLD, for MCU players / reclocking KOON3876 Digital Line Level 21 19th September 2008 04:00 PM
asynchronous reclocking and low jitter clocks ash_dac Digital Source 3 8th February 2005 09:22 AM


New To Site? Need Help?

All times are GMT. The time now is 03:45 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