At 04:09 PM 11/23/2005, Robert McGwier wrote:
Relatively prime numbers are your friend.
Indeed, but I was thinking that one might be able to adopt an off the shelf
dual modulus counter, which typically differ by one count.
Actually, there's all kinds of other strategies, too.. you can use the 200
MHz to clock a variety of counters, and pull out various lower rate clocks.
Or, a fast counter that has a latch.
Ultimately, I guess the real limit is in the setup/hold times in response
to the 1pps (if that's what you're using)
Jim Lux wrote:
At 02:15 PM 11/23/2005, ecellison wrote:
Lyle
Thanks. Well not too difficult to divide the 200 by 10 externally and
perhaps provide buffering for the 200 mhz sig coming out of the SDR.
Eric2
Even better, if you don't want to give up the resolution (dividing by 10
does that) is divide by 10 and run that in one pin. Divide by 11 and run
that in another pin. Now you can actually get the full resolution.
Jim, 'rmk
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Spacecraft Radio Frequency Subsystems Group
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