looking for a slaved USB (or Spidf) to I2S device - 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
Thread Tools Search this Thread
Old 3rd July 2014, 03:06 PM   #1
Eldam is offline Eldam  France
diyAudio Member
Join Date: Sep 2012
Location: At home, sweet sound home...
Default looking for a slaved USB (or Spidf) to I2S device


I'm looking for such a device which allow to be slaved by an external MCLK.

I just saw devices with embeded own high quality crystals to do the MCLK but would like to avoid it and without external FIFO... : so with an external MCLK to slave it.

- The Blck fs can be set up or already fixed at 32 fs or 64 fs max.

- Uf.l output needed for MCLK input and I2S outputs.

Does such a device exist (USB or Spidf to I2S) please ?

Maybe an already existing one where the clocks can be switched off? Wave-I/O ? Amareno ?


  Reply With Quote
Old 4th July 2014, 09:22 AM   #2
diyAudio Member
Join Date: Aug 2010
Amanero can use an external MCLK Signal, however this external MCLK needs to sense the actual sampling rate and provide the correct MCLK (e.g. 22.579MHz for 44.1kHz and 24.576MHz for 48kHz). Therefore actual samplerate is coded at the pin header of the Amanero.

Not to be mixed up with I2S master/slave! Asynchronous USB devices will always be master (except additional FIFO is used).

kind regards, Daniel
  Reply With Quote
Old 4th July 2014, 10:39 AM   #3
Eldam is offline Eldam  France
diyAudio Member
Join Date: Sep 2012
Location: At home, sweet sound home...
Thank you Daniel,

If my understanding about your answer is corect, I can't avoid one of those two frequencies because it is already programed on the chip (or in the design) ?

Did you hear about a design which allow to slave but with a software or straps possibilities to choose the MCLK and the I2S speed (e.g. for a low speed crystal like 6.x Mhz e.g. where Mclk could be equal (or not) to Bclk ?

thank you also about the last sentence of your inputs, It helps a lot as i was not really confident with this concept.


  Reply With Quote


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
USB isolator for asyncron USB to I2S converters koldby Digital Line Level 12 22nd December 2013 05:59 PM
Raspberry Pi I2S output as Asynchronous USB-to-I2S Tinco Digital Line Level 26 27th September 2013 02:18 AM
I2S conversion for SB Device timequest Digital Line Level 2 29th May 2009 09:48 PM
Firewire or USB device for tapping I2s lucpes Digital Source 1 8th November 2006 05:44 PM
Direct Wiring a DDDAC USB-->I2S to a P3A DAC I2S DIN input dkj7a Digital Source 1 26th March 2006 05:46 PM

New To Site? Need Help?

All times are GMT. The time now is 01:53 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