Da-capo issue (John W?)

[loris.p]

John,
I'm still playing with my Cardinal/Ordinal. I've come across this Dic. I thought it was a modified clock lock dic but I guess it's a modified bnc standard dic. Can you tell some more?
Loris

[JohnW]

Your modified DIC - (Digital Input Card)

Hi Loris,

Yes its a standard BNC input DIC, however someone has added an RCA in parrellel with the BNC - however the RCA appears wired after the the AC coupling capacitor - which could cause problems depending on source. If you want to use the DIC with the RCA (not recomended due to the Risk of earth leakage current damage) - you should wire the RCA DIRECTLY in parrellel with the BNC - so before the Ceramic coupling capacitor.

John

[JohnW]

"The Moog"

This is a LINK to an application note by Rane Corporation (RaneNote 149) which goes into some detail concerning Balanced AES/EBU to 75Ohm SPDIF conversion.

So long as the DEQ2496 has true balanced AES/EBU outputs (I.e. its outputs are transformer coupled), then as the input's of the MDAC are also Balanced you will still gain the benefits of Common mode rejection of a balanced link – with Fig 1. providing the impedance and signal amplitude conversion.

John

[loris.p]

John,
at a certain point in the thread you talked about a T1 transport too. Still scheduled?
Loris

[seccles12]

Hi John,

Great to hear that your designs are finally being released in one way or another :-)

You mention that the MDAC will work with the clock-link feature on some of the older Arcam CD players - do you know which Arcam CD players had this feature?


Thanks

Steve.

[The Moog]

Originally Posted by JohnW

"The Moog"

So long as the DEQ2496 has true balanced AES/EBU outputs (I.e. its outputs are transformer coupled), then as the input's of the MDAC are also Balanced you will still gain the benefits of Common mode rejection of a balanced link – with Fig 1. providing the impedance and signal amplitude conversion.

John

Many thanks for that information John,

Seems that the DEQ2496's AES/EBU outputs are indeed truely balanced, so this looks like a good option for me. Any further news on when we might see it arrive here in the UK? Any pictures of it allowed out yet ?

The Moog

[loris.p]

Originally Posted by JohnW

I’m happy to publish circuits and possibly design and ship small PCB’s that Forum users can retrofitted to there CD players to allow clock-locking – resulting in “Perfect” digital transports from “any old CD player” that has a Bit accurate SPDIF Data output.

So I guess I'll need an interface for the Cardinal

[indypants]

Originally Posted by loris.p

So I guess I'll need an interface for the Cardinal

Me too, as it seems the clock out on the new DAC is optical

[fauntleroy]

Curse you Westlake!

Rumbled me again,
Dan.

[sq225917]

@ Fauntleroy, NTSFS.