Nick Foster wrote:
If you're thinking about using a CPLD to load registers in a PLL chip, why not 
just implement the PLL on the CPLD? After all, if you're looking for 
simpler-is-better, there's not much on a dedicated PLL chip that you can't 
easily replicate in CPLD with some care and attention paid to layout.



Most CPLDs don't have low noise phase frequency detectors, the charge pump, or the analog parts to make the loop filter.

Jim

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