[Gb-ccb] forwarded message from John Ford
Martin Shepherd
mcs at astro.caltech.edu
Wed Jan 21 13:07:12 EST 2004
On Wed, 21 Jan 2004, Richard Lacasse wrote:
> Am I correct in assuming that the frequency of the reference signal
> available in the receiver room for the Cal Tech CCB is 10 MHz?
Beware that my current plan is to run the FPGA from a 40MHz clock, and
have the FPGA generate the ADC 10MHz clock from this, by frequency
dividing it by 4. This will ensure synchronization between the two
clocks.
Martin
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