There are lots of sampling ADCs which will support that type of operation directly or you can easily design and build a sampling phase detector but that all involves significant extra circuitry outside of the microcontroller.
Take a look at the Racal Dana 1992 reference frequency multiplier option (the schematic is on page 7-33 of the service manual) for an example of a sampling phase detector used in a similar application. On Thu, 6 Dec 2012 16:43:26 -0800, Chris Albertson <albertson.ch...@gmail.com> wrote: >What if the OCXO had a sine wave output and then you used the PPS leading >edge to gate the sine wave to a sample and hold. then the sample is >measured by the Arduino's ADC? I think(?) you get a 10-bit ADC or is it >8-bits. The problem is the required speed of the sample and hold, maybe >not easy to build _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
