[time-nuts] yet another GPSDO design, or so
Hal Murray
hmurray at megapathdsl.net
Tue Jun 29 20:05:44 UTC 2010
> or with a pair of current output DACs and a resistive divider/summer so you
> have a "high order" and "low order" voltage.
If it were that simple, the manufacturers would package it up into a single
chip. :)
I think there are two areas of interest. One is the obvious one that steps
on the high-order DAC won't cleanly map into a constant number of steps in
the low-order DAC.
The other is things like temperature shifts. You have to work out the specs
for both paths and take the worst one.
--
These are my opinions, not necessarily my employer's. I hate spam.
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