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Honored Contributor
Honored ContributorNCO phase drift
Hello, I have an NCO generating a 60 Hz sine output. input clk = 10 khz phase accumulator precision = 32 bits angular resolution = 32 bits magnitude precision = 10 bits phase incr...
Altera_ForumHonored Contributor
Honored ContributorIf I understood you are trying to lock to the mains 60Hz using NCO.
In this case I assume you will be doing that by changing NCO tuning word up and down from an initial value such that it keeps tracking the mains. In this case the drift I was referring to does not really apply and the loop should be able to lock provided your ref clock is good enough.
