wayne325;558637 Wrote: 
> 
> In fact, I believe
> I'm still the only person on this board who has designed his own DAC to
> do
> exactly this.  

I did this with an SB3 years ago. The capability to do it is what got
me interested in squeezeboxes in the first place. 

I have very low jitter oscillators in the DAC, which get sent over LVDS
to the SB3 and replace the existing crystals. I take the I2S (really
left justified) out of the SB3 and again send them over LVDS to the
DAC. The DAC has an FPGA which determines which clock the SB3 is using
and drives a clock mux which muxes the two oscilators. The FPGA also
takes the signal from the SB3 and splits it up into two mono streams.
These go to reclocking flops driven from the clock mux and then on to
the 1704s. 

What really surprised me was how much better the analog outs from the
SB3 sounded when using the low jitter clocks.

John S.


-- 
JohnSwenson
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