Digital patchbay

[mark verbos]

Martin Czech wrote:

> I think max. F is  3 MHz.  Even CDxxxx muxers should handle that, may
> be not at 5V.  A muxer will allways weaken the signal drive, so perhaps
> a bus structure with tristate drivers is better.  All z but one, which
> is the talker.
>
> Should be not critical layout, if the pcb lines get long, you'll have to
> terminate the ends, groundplane recommended.
>
> AES/EBU has unfortunately a different format than SPDIFF.  Simple hardware
> won't do in this case.

I did a factory designed mod to a Z systems digital patchbay that converted
some of the channels form AES/EBU to SPDIF and all that was involved was 2
resisters on each channel. I think all the mod did was change the gain of the
op amp stage on the in and the out.

Z systems themselves faxed me the specs so I have to assume it is a proper
change.

--
mark verbos

"if you want something done right, build it yourself."

verbos at mail.com

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