Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Digital Line Level DACs, Digital Crossovers, Equalizers, etc.

Please Help for SPDIF interface on TDA1541 dac
Please Help for SPDIF interface on TDA1541 dac
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 15th March 2020, 10:38 PM   #51
herrero is offline herrero
diyAudio Member
 
Join Date: Feb 2013
Quote:
Originally Posted by rfbrw View Post
It is not about inconvenience. I am not forced to respond. However, there is only so much one can do to help.
Ok, i Understand. And Thank you for all answers!
  Reply With Quote
Old 20th March 2020, 09:42 PM   #52
herrero is offline herrero
diyAudio Member
 
Join Date: Feb 2013
Default Please Help for SPDIF interface on TDA1541 dac

Hello, this are a DIX4192 version:
It uses a 11.2396MHz TCXO to CXD8003 (5v) and DIX4192 (3,3V)

The connections are all correct?
If have any modifications to do, please, inform me, ok?
Thanks again!!!
Attached Images
File Type: jpg DIX.jpg (761.7 KB, 60 views)
  Reply With Quote
Old 20th March 2020, 11:06 PM   #53
herrero is offline herrero
diyAudio Member
 
Join Date: Feb 2013
Default Please Help for SPDIF interface on TDA1541 dac

This is the enlarged image of the DIX4192 circuit:
Attached Images
File Type: jpg 4192big.jpg (778.2 KB, 57 views)
  Reply With Quote
Old 21st March 2020, 07:16 AM   #54
Rick PA Stadel is offline Rick PA Stadel  United States
diyAudio Member
 
Join Date: Apr 2017
Location: greater Kansas City
Umm-mm, couple o' things still ..

R7 can be omitted. CXD8003 pins 24, 25, 26, and 27 will only provide a signal if that oscillator (pins 25 and 26) is running, probably as originally connected.

The problem with that would be the same trouble the design now faces -- incoming S/PDIF comes with its own clock, and it won't be frequency OR phase-matched with the TCXO. And that is the case whether the 11.2896 MHz comes from a crystal that the 8003 drives, OR a separate TCXO.

I'm pretty sure it would be at least worth trying driving both XIN's (CXD1244 pin 9, 8003 pin 22) with the recovered MCK from the S/PDIF receiver. Aren't both of those IC's still connected much as in the original equipment? Just defeat the 3/2CLK loop and run a jumper between the two XIN's.

The DIX4192 is bound to provide more interesting, hidden surprises; I haven't spent nearly enough time on it -- certainly far less than the earlier proposed DIR9001.

Cheers
  Reply With Quote
Old 21st March 2020, 11:39 AM   #55
rfbrw is offline rfbrw
diyAudio Member
 
Join Date: Oct 2001
Location: .
Default No accumulation without speculation ? Maybe but,

Quote:
Originally Posted by Rick PA Stadel View Post
....I'm pretty sure it would be at least worth trying driving both XIN's (CXD1244 pin 9, 8003 pin 22) with the recovered MCK from the S/PDIF receiver. Aren't both of those IC's still connected much as in the original equipment? Just defeat the 3/2CLK loop and run a jumper between the two XIN's.
would it not be easier to just do things right in the first place ?
  Reply With Quote
Old 21st March 2020, 08:20 PM   #56
herrero is offline herrero
diyAudio Member
 
Join Date: Feb 2013
Default Please Help for SPDIF interface on TDA1541 dac

Yes, thank you!

But i have many doubts on the pin 13 of the DIX4192, i will conect to a second oscillator? or i will connect together with pin25?? for the use of the recovered clock on pin 12(RXCKO) for the CXD1244 + CXD8003?

What the yours suggestions about the correct connections on al icīs??
Thanks for all Help(and patience with me .
  Reply With Quote
Old 26th March 2020, 03:29 AM   #57
Rick PA Stadel is offline Rick PA Stadel  United States
diyAudio Member
 
Join Date: Apr 2017
Location: greater Kansas City
Hi herrero,

I was hoping rfbrw would check in and give us the details . . I certainly don't know what ".. easier to just do things right .." amounts to for this combination of parts -- especially the DIX4192. I'm still trying to figure out what the reason was for changing from the DIR9001. Do you expect to need four differential inputs, or the Transmit facilities, for example? Hope you saw that it needs a microcontroller to do a bunch of housekeeping and setup.

I guess I could re-read the thread from the beginning . . I'll keep checking in every day or two. Given enough time (and your patience) maybe I'll eventually know something about these parts to contribute!

Cheers

Last edited by Rick PA Stadel; 26th March 2020 at 03:32 AM.
  Reply With Quote
Old 26th March 2020, 10:19 PM   #58
rfbrw is offline rfbrw
diyAudio Member
 
Join Date: Oct 2001
Location: .
The CXD1244 expects 16bit right-justified data with bitclock at 48Fs. The DIR9001 cannot meet this specification. The DIX4192 can because it can operate its audio ports in slave mode and operate LRCLK and BCLK as inputs.
  Reply With Quote
Old 27th March 2020, 12:11 AM   #59
herrero is offline herrero
diyAudio Member
 
Join Date: Feb 2013
The inputs are very flexible too, with options of diferencial, no diferencial, optical, coaxial...
The other I2S/EIAJ port i will connect on the Xmos XU208 USB module (Available on Ebay)
All functions are controlled by uC.
I have started in the program for tests, and i will purchase in Digikey some DIX1492.
  Reply With Quote
Old 28th March 2020, 12:05 AM   #60
Rick PA Stadel is offline Rick PA Stadel  United States
diyAudio Member
 
Join Date: Apr 2017
Location: greater Kansas City
Thank you rfbrw! Now I understand. Sorry -- I can be kinda thick about some of this, especially when the data PDF's total some 107 pages. Guess I'd better get busy.

I'm still a little worried about the tiny package and its 0,5mm-spaced leads, but that's probably just me ..

Best Regards

Last edited by Rick PA Stadel; 28th March 2020 at 12:16 AM.
  Reply With Quote

Reply


Please Help for SPDIF interface on TDA1541 dacHide 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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
FS Ian SPDIF interface board Myint67 Swap Meet 1 16th July 2015 01:09 AM
USB to SPDIF/I2S interface ultrafi Swap Meet 1 20th November 2012 06:39 PM
SPDIF interface farhad20 Digital Line Level 0 28th April 2010 02:06 PM
Spdif into USB interface? lagoausente Digital Source 19 20th August 2006 08:23 PM
spdif to usb interface, why not? morpheus82 Digital Source 11 18th August 2006 04:35 PM


New To Site? Need Help?

All times are GMT. The time now is 05:09 AM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 15.00%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright ©1999-2020 diyAudio
Wiki