my guess > providing a clean clock in the presence of a noisy digital ground. answer > how to isolate the ground and power without adding another off board supply.
Correct.
We want this clock to be as precise as possible. Look at Ians Fifo clock board (not the fifo board) they are using LDOs if powered from FIFO
can we bound this spec better.We want this clock to be as precise as possible
what is the clock? does your FPGA clock interface have a special requirements too, separate power pins? differential
does the clock have a pushing spec ? V supply to Fc modulation out
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