Simple RBUS/TDIF/ADAT ADC/DAC

guy.joseph · 12th May 2009, 08:19 PM

Hello

I would like to build a simple ADAT or RBus or TDif 8 Channel ADC/DAC. It needs to operate at 24bit 48kHz or above. I need 8 channels of i/o, but they can just be at line level.

I believe that RBus and TDif are the same protocol just under different wirings. Is it also true that the pins ie 1/2 in carries the signal over SPDIF? In which case is there a very simple SPDIF ADC/DAC for 2 channels that I could have 8 copies of?

Whilst I've got quite a bit of electronics knowedge, I've never done anything like this before.

A diagram of the ideal situation is attached. If you would like any more info please message me or reply.

Thanks very much!

Guy Joseph

tritosine · 12th May 2009, 10:41 PM

There are soundcards like Lynx aes16 , or Rme AES ...
Those basically contain 8 pieces of Spdif RX/Tx , hence 16in 16out.
The challenge is to feed back some good external local clock that makes low jitter conversion possible, and the host (PC ) is slaved to that.

guy.joseph · 14th May 2009, 07:05 AM

Hi

Thanks for a quick reply. I already have the interfacing between the PC and the TDIF (The V-Fire that I have). What I need is something to convert from line level inputs to the TDIF inputs and outputs on the V-Fire.

Thanks

Guy

tritosine · 14th May 2009, 07:18 AM

hm , interesting , can you open it for a quick look under the hood ?

-Maybe its a TC Dice2 chipset you can buy for cheap...

tritosine · 14th May 2009, 07:35 PM

I see original MSRP was 400 usd and it comes from 2006. Then its safe to presume its a DICE2 chipset. That is quite straight forward cause they use plain i2s / aes ebu pins then. You have documentation for the roland connector ?

guy.joseph · 17th May 2009, 08:30 AM

Hi

Thanks for your thoughts.

I don't have any documentation for the R-Bus connector, but I know that it is simmilar to TDIF (people have built simple adapters for the two before...)

A lot of it is here: http://tascamforums.com/index.php?showtopic=14518

Thanks

Guy

Muziekschuur · 16th February 2011, 07:15 AM

Did you ever realise these converters? I am the one who posted all the original documentation... So I wonder.

14th May 2009, 07:05 AM	#3
guy.joseph diyAudio Member Join Date: May 2009	RE: Lynx AES 16 Hi Thanks for a quick reply. I already have the interfacing between the PC and the TDIF (The V-Fire that I have). What I need is something to convert from line level inputs to the TDIF inputs and outputs on the V-Fire. Thanks Guy

17th May 2009, 08:30 AM	#6
guy.joseph diyAudio Member Join Date: May 2009	RE: Roland connector Hi Thanks for your thoughts. I don't have any documentation for the R-Bus connector, but I know that it is simmilar to TDIF (people have built simple adapters for the two before...) A lot of it is here: http://tascamforums.com/index.php?showtopic=14518 Thanks Guy

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
ADAT receiver	KOON3876	Digital Line Level	18	24th October 2009 11:58 PM
DIY ADC/DAC with ADAT	echosystm	Digital Line Level	1	8th May 2009 10:34 PM
ac3 and ADAT?	noelburke82	Digital Line Level	4	8th March 2009 05:15 AM
ADAT DAC Question	kmt	Digital Source	24	24th February 2009 02:39 AM
8-channel A/D adat	meta	Digital Source	6	22nd November 2002 04:53 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read


	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

12th May 2009, 10:41 PM	#2
tritosine diyAudio Member Join Date: Aug 2008	There are soundcards like Lynx aes16 , or Rme AES ... Those basically contain 8 pieces of Spdif RX/Tx , hence 16in 16out. The challenge is to feed back some good external local clock that makes low jitter conversion possible, and the host (PC ) is slaved to that.

14th May 2009, 07:18 AM	#4
tritosine diyAudio Member Join Date: Aug 2008	hm , interesting , can you open it for a quick look under the hood ? -Maybe its a TC Dice2 chipset you can buy for cheap...

14th May 2009, 07:35 PM	#5
tritosine diyAudio Member Join Date: Aug 2008	I see original MSRP was 400 usd and it comes from 2006. Then its safe to presume its a DICE2 chipset. That is quite straight forward cause they use plain i2s / aes ebu pins then. You have documentation for the roland connector ?

16th February 2011, 07:15 AM	#7
Muziekschuur diyAudio Member Join Date: Oct 2005	Did you ever realise these converters? I am the one who posted all the original documentation... So I wonder.