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Old 22nd November 2009, 12:04 PM   #541
loris.p is offline loris.p  Italy
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Default Dic

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
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Old 22nd November 2009, 02:22 PM   #542
JohnW is offline JohnW  Hong Kong
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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
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Old 24th November 2009, 01:01 PM   #543
JohnW is offline JohnW  Hong Kong
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Default Balanced AES/EBU to 75Ohm SPDIF conversion.

"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
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Old 24th November 2009, 09:06 PM   #544
loris.p is offline loris.p  Italy
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Default T1

John,
at a certain point in the thread you talked about a T1 transport too. Still scheduled?
Loris
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Old 26th November 2009, 08:36 AM   #545
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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.
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Old 1st December 2009, 09:24 PM   #546
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Quote:
Originally Posted by JohnW View Post
"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
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Old 5th December 2009, 09:27 AM   #547
loris.p is offline loris.p  Italy
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Quote:
Originally Posted by JohnW View Post

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
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Old 8th December 2009, 07:18 AM   #548
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Quote:
Originally Posted by loris.p View Post
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
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Old 13th December 2009, 02:54 AM   #549
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Curse you Westlake!

Rumbled me again,
Dan.
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Old 14th December 2009, 06:14 PM   #550
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