buffer SPDIF input stage for ESS9018 - Page 4 - diyAudio
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 19th March 2012, 08:52 AM   #31
diyAudio Member
 
Join Date: Oct 2002
Location: UK
Quote:
Originally Posted by merlin el mago View Post
Thank you stormsonic, now I see is for AES/EBU balanced signal not for S/PDIF signal, also I take note to use U = unbuffered version.
Jocko's input was designed for the CS8412 / 8414. Those devices have a balanced SPDIF input into the RS422 receiver in the device.

RXP (Pin 9)

RXN (Pin 10)

The component values are calculated exactly for this application, too.

As an aside, I have tried it out on a WM8804 receiver (unbalanced SPDIF input) and it works, but I know it wasn't optimised.
__________________
John Linsley Hood Ripple Eater GB Part One made 729 for Cancer Research UK. Thanks for your support!!!
  Reply With Quote
Old 19th March 2012, 01:13 PM   #32
diyAudio Member
 
merlin el mago's Avatar
 
Join Date: Sep 2009
Location: Catalonia - Europe
Quote:
Originally Posted by JensH View Post
You could try to modify it as I suggested in post #15. The impedance is correct for SPDIF.
For AES/EBU you would need a higher impedance (110ohm).
As I wrote, the modification will give you twice as much signal. And that is at the buffer input, so it will make the buffer less sensitive to noise. The output will still be from 0 to the supply voltage (5V in this case).
Quote:
Originally Posted by jonclancy View Post
Jocko's input was designed for the CS8412 / 8414. Those devices have a balanced SPDIF input into the RS422 receiver in the device.

RXP (Pin 9)

RXN (Pin 10)

The component values are calculated exactly for this application, too.

As an aside, I have tried it out on a WM8804 receiver (unbalanced SPDIF input) and it works, but I know it wasn't optimised.
Thank you guys
  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
Need input on Buffer stage to use in Preamp.. Adrculda Tubes / Valves 22 9th August 2012 02:55 PM
SPDIF S/P-DIF DOBM resp. Digital Input Selector include USB-SPDIF Converter tiefbassuebertr Digital Source 6 21st February 2012 09:00 PM
IC with SPDIF input to USB or 1394 (or with HDMI input for audio stream) VickHard Digital Source 2 26th March 2010 03:17 AM
connecting input directly to ucd, no input buffer mazurek Class D 20 19th July 2006 04:32 PM
what do you think of my input buffer stage mazurek Parts 6 6th April 2006 04:03 PM


New To Site? Need Help?

All times are GMT. The time now is 09:16 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