Thanks for the responses fellas.

I did some checking on this Wolfson receiver and found an interesting
post by the guy who designed the Neko DAC.

http://www.nekoaudio.com/forum/viewtopic.php?f=4&t=23

"But I decided to not worry about jitter at all by choosing the Wolfson
WM8804 S/PDIF receiver. Wolfson designed a chip that would not carry
input jitter through to output jitter. So as long as the input signal is
readable, you get a nice stable output signal. For more details, check
out the white papers listed on the WM8804 product page.

Now, irrespective of all this you still want a relatively clean
transport. After all, if your transport's digital output stage isn't
reliable then there's not much a DAC can do. I've come across computer
sound cards that were improperly grounded inside or included noise in
the MHz bands on its coaxial output."

"The WM8804 is driven by a 12MHz oscillator. The incoming S/PDIF signal
is locked onto using a digital PLL. This data is then placed into a
buffer. The 12MHz oscillator is used to generate a clock, and values are
pulled out of the buffer as needed.

So now you have a data value synchronized with the internal clock, and
the internal clock is clean and steady as it is derived from the 12MHz
oscillator. There's a little more to it than that, which you can read in
the white papers, but by rebuffering and using a good internal clock,
you get a clean and steady audio stream. In fact, one use of the WM8804
is simply to reclock an incoming S/PDIF signal and output a "cleaned up"
S/PDIF signal."


-- 
Kellen
------------------------------------------------------------------------
Kellen's Profile: http://forums.slimdevices.com/member.php?userid=16569
View this thread: http://forums.slimdevices.com/showthread.php?t=73882

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