I think a number of higher-end sound cards accept a "word clock" or
"world clock" (I've seen it both ways) that's intended to allow syncing
to an external source. The challenge I've seen is that the frequency
(either in the 12 or 24 MHz range) is one that's not simple to
synthesize precisely (i.e., zero offset from nominal) and with low
jitter/phase noise from a 5 or 10 MHz reference.
I think it would be a great project to come up with a synthesizer block
that could do that. It's been on my list for a long time, but hasn't
yet risen near the top.
John
----
On 7/6/2012 10:51 AM, Azelio Boriani wrote:
Yes, I'm also interested in how-to. At the moment I think it is a hack:
there is no sound card AFAIK that accepts a reference input. I have
recently bought an Acqiris/Agilent DP105/U1067A 150MHz 500Ms/s digitizer
PCI card that accepts an external 10MHz as a reference for the sampling
process.
On Fri, Jul 6, 2012 at 4:43 PM, Stewart Bryant <stew...@g3ysx.org.uk> wrote:
... and running it to a sound card (oscillator gps disciplined)
How did you achieve this?
Thanks
Stewart
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