Hi True, but you can do a fairly simple filter to separate the 250 KHz note you "don't want" from the 8 KHz highest frequency that you do want. There are a lot of ADC's that will do that for you with their built in filtering.
Bob On Dec 5, 2012, at 9:23 PM, Rick Karlquist <[email protected]> wrote: > Bob Camp wrote: >> Hi >> >> You might be surprised by the noise floor of an XOR run at 125 KHz. They >> are quite good at that low a frequency. >> >> Bob > > An XOR, unlike a mixer, does not have a null when the > phases are in quadrature. This is the fundamental problem > with using it as a phase detector. > > Rick > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
