[email protected] said: > At this time, I will give my usual speech about IMHO the fact that since the > invention of the DDS on a chip, EFC should no longer be used for high > performance oscillators.
That caught my attention. Could you please say more. A DDS introduces spurs. They move around as you change the adjustment parameters. Are the spurs small enough that they are not a problem with most applications? What applications do/don't get along with spurs? What do spurs look like on an ADEV plot? I think of a "DDS on a chip" as having a VCO/PLL up to some fairly high frequency and some digital logic that brings that down to the target frequency. The high frequency means that the time step from N to N+1 cycles is smaller. But VCOs are noisy relative to a good crystal. So in addition to spurs, I'd expect more phase noise. Am I on the right track? What should I have asked? -- These are my opinions. I hate spam. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
