Go Back   Home > Forums > Commercial Sector > Vendor Forums > Audio Sector

Audio Sector Kits & PC boards from AudioSector

Reply
 
Thread Tools Search this Thread
Old 31st August 2012, 09:10 AM   #2881
tom6 is offline tom6  Australia
diyAudio Member
 
Join Date: May 2012
Default NOS DAC accepts I2S input?

Hi Peter

I've been reading about Ian's I2SFIFO re-clocker project:
Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter
- I know your DAC accepts spdif or usb inputs but with modifications, could it also work with an I2S input from the above re-clocker (I guess directly into the 1543 DAC chip), or is this not possible?

Thanks
  Reply With Quote
Old 1st September 2012, 05:07 PM   #2882
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
The DAC will accept I2S signal directly, I'm not sure about re-clocker format, but chances are it should work fine.
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 3rd September 2012, 07:11 PM   #2883
endia is offline endia  Turkey
diyAudio Member
 
Join Date: Sep 2004
Location: istanbul
Quote:
Originally Posted by Peter Daniel View Post
Yes, that would be correct connection.
thank you, Peter.
  Reply With Quote
Old 13th September 2012, 05:30 PM   #2884
diyAudio Member
 
Join Date: Jun 2012
Would i be a bad idea to replace the hard to get and expensive caddock resister with some Welwyn MFR3 resistors?

thanks for your answer...

  Reply With Quote
Old 20th September 2012, 03:04 PM   #2885
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
No problem at all.
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 20th September 2012, 08:20 PM   #2886
endia is offline endia  Turkey
diyAudio Member
 
Join Date: Sep 2004
Location: istanbul
Hi Peter,
i'm reading 11.8V AC from this transformer's outputs. after rectification it should be around 17V DC. is it high or safe? AN800X datasheet says that max input voltage is 20V but there are 16V small BG electrolytics are on the board. what should i do?
thanks in advance..
Attached Images
File Type: jpg mains.jpg (36.9 KB, 332 views)
  Reply With Quote
Old 20th September 2012, 09:26 PM   #2887
diyAudio Member
 
Peter Daniel's Avatar
 
Join Date: Jul 2002
Location: Toronto, Canada
Send a message via AIM to Peter Daniel
Transformer is rated at 9V, so 11.8 readout seems a bit high. Use series resistor after rectification (about 20R in CRC configuration) and this will get you another 1.2 V drop.

I'm using 8V transformers and after filtering the voltage is less than 12V
__________________
www.audiosector.com
“Do something really well. See how much time it takes. It might be a product, a work of art, who knows? Then give it away cheaply, just because you feel that it should not cost so much, even if it took a lot of time and expensive materials to make it.” - JC
  Reply With Quote
Old 20th September 2012, 09:57 PM   #2888
endia is offline endia  Turkey
diyAudio Member
 
Join Date: Sep 2004
Location: istanbul
there are already four 20R resistors (R1 through R4) after panasonic line filters under the board (bridging to the dac board).. are they sufficient or should i solder some resistors? how can i do that on the green board? thanks.
  Reply With Quote
Old 21st September 2012, 06:32 AM   #2889
AndrewT is offline AndrewT  Scotland
diyAudio Member
 
Join Date: Jul 2004
Location: Scottish Borders
Add a small bridge rectifier and small smoothing capacitor to your transformer secondary.
Measure the "no load" output voltage of the PSU.

It will be a lot less than 17Vdc.
__________________
regards Andrew T.
  Reply With Quote
Old 21st September 2012, 08:43 AM   #2890
endia is offline endia  Turkey
diyAudio Member
 
Join Date: Sep 2004
Location: istanbul
AndrewT, thanks a lot, will do in the evening..

Peter, what is the max input voltage after rectification?
  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



New To Site? Need Help?

All times are GMT. The time now is 05:44 AM.


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