USB to I2S 384Khz - DSD Converter - Page 80 - diyAudio
Go Back   Home > Forums > Commercial Sector > Vendor Forums > Vendor's Bazaar

Vendor's Bazaar Commercial Vendors large & small hawking their wares

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 November 2012, 01:13 PM   #791
syklab is offline syklab  Hong Kong
diyAudio Member
 
Join Date: Jul 2009
Location: Hong Kong
Quote:
Originally Posted by s3tup View Post
Use the RS-485 or LVDS transmitter/receiver ICs...
Is the ADN4665/4666 is right kind?
  Reply With Quote
Old 15th November 2012, 01:28 PM   #792
smanz is offline smanz  Spain
diyAudio Member
 
Join Date: Jul 2008
Quote:
Originally Posted by crobbins5421 View Post
I use the TDA1541A chip in my DAC. It uses 5V logic.

To use the Amanero board, I need a 3.3V to 5V level shifter like this:

So...I just run the I2S sigal grounds to the power ground on the level shifter?

Also, shouldn't the signal wires be the same length as the ground wires?...
I think a better solution is to use a digital isolator as the IL 175. Thus also break ground loops. You just have to connect VD1 to 3.3V (Amanero side) and VD2 to 5V (TDA1541 side)

All wires must be the same length.

Regards
  Reply With Quote
Old 15th November 2012, 01:31 PM   #793
diyAudio Member
 
Join Date: Dec 2003
Location: Hong Kong
Quote:
Originally Posted by merlin el mago View Post
Sorry confused me.
Exactly!
  Reply With Quote
Old 15th November 2012, 01:32 PM   #794
diyAudio Member
 
s3tup's Avatar
 
Join Date: Dec 2004
Location: Israel
Quote:
Originally Posted by syklab View Post
Is the ADN4665/4666 is right kind?
ADN4667/ADN4668 seem to give much better layout, 1.5ps RMS jitter contribution by ADN4667/ADN4668 combo thru HDMI cable.

HDMI cables work nicely for I2S transmission.
__________________
The missing link between lead and gold in alchemist's world was BS and commerce.
  Reply With Quote
Old 15th November 2012, 01:33 PM   #795
Nikitas is offline Nikitas  Greece
diyAudio Member
 
Join Date: Nov 2011
Location: Amsterdam
I'm late I know, is the gb still on?
  Reply With Quote
Old 15th November 2012, 01:33 PM   #796
smanz is offline smanz  Spain
diyAudio Member
 
Join Date: Jul 2008
Quote:
Originally Posted by syklab View Post
Is the ADN4665/4666 is right kind?
Do you know this module? Teleporter Digital Transfer Module

Regards
  Reply With Quote
Old 15th November 2012, 01:37 PM   #797
syklab is offline syklab  Hong Kong
diyAudio Member
 
Join Date: Jul 2009
Location: Hong Kong
Quote:
Originally Posted by s3tup View Post
ADN4667/ADN4668 seem to give much better layout, 1.5ps RMS jitter contribution by ADN4667/ADN4668 combo thru HDMI cable.

HDMI cables work nicely for I2S transmission.
Agree, will try to get a set of these chip to try out.

Thanks
  Reply With Quote
Old 15th November 2012, 01:47 PM   #798
syklab is offline syklab  Hong Kong
diyAudio Member
 
Join Date: Jul 2009
Location: Hong Kong
Quote:
Originally Posted by smanz View Post
Do you know this module? Teleporter Digital Transfer Module

Regards
Didn't notice, worth a look and can save some work.

Thanks
  Reply With Quote
Old 15th November 2012, 02:04 PM   #799
syklab is offline syklab  Hong Kong
diyAudio Member
 
Join Date: Jul 2009
Location: Hong Kong
Quote:
Originally Posted by s3tup View Post
ADN4667/ADN4668 seem to give much better layout, 1.5ps RMS jitter contribution by ADN4667/ADN4668 combo thru HDMI cable.

HDMI cables work nicely for I2S transmission.
According to the spec twisted pairs cable can be used as a transmission medium.
  Reply With Quote
Old 15th November 2012, 03:50 PM   #800
qusp is offline qusp  Australia
diyAudio Member
 
qusp's Avatar
 
Join Date: Oct 2009
Location: Brisbane, Australia
Quote:
Originally Posted by smanz View Post
I think a better solution is to use a digital isolator as the IL 175. Thus also break ground loops. You just have to connect VD1 to 3.3V (Amanero side) and VD2 to 5V (TDA1541 side)

All wires must be the same length.

Regards
yes they should ideally, if its all being reclocked a bit of difference wont cause a big problem. I didnt mention it on the previous page as it seemed like I already had my work cut out getting a ground for each signal =) plus it sounded like there was a long cable afterwards, so 20mm probably wasnt a big deal in the greater scheme of things. ribbon cable is a good way to assure the same length though so I just suggested that.


more general stuff for the thread

when twisted pear suggest twisted pair can be used, they mean actual twisted pair cable, not home twisted silver wire, but 100ohms ethernet cabling, I favor Belden Cu in PTFE network cable, but yes HDMI is a better cable construction IMO.

I tell you what though, nothing beats not needing to drive a long cable to your dac in the first place.... just use an isolator and reclock locally at the dac if you can. people really shouldnt be treating this like a separate peripheral, its part of the dac, it should be as close to the dac as possible, you should not use one of these HDMI or teleporter things just to enable you to install it somewhere you have enough room for your shunt regs... the thing is tiny, you should have room for it in any dac, putting it in another case just so you can use a low noise power supply is walking *** backwards

Last edited by qusp; 15th November 2012 at 03:52 PM.
  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
HLLY USB SPDIF/ I2S CONVERTER kp93300 Digital Source 12 29th January 2012 02:55 PM
exaU2I - 32bit/384kHz Multi-Channel Asynchronous USB to I2S Interface exa065 exaDevices 0 11th November 2011 11:41 AM
$40 USB to I2S converter sharpi31 Digital Line Level 7 12th July 2009 04:09 PM


New To Site? Need Help?

All times are GMT. The time now is 11:36 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