Yes. The idea was the simplest GPSDO that can be build with no PCB around an Arduino. We already know how to build compllelx and expensive GPSDO. That is "too easy".
I think you can use the PWM DAC on the Aruino to drive the OCXO. The bandwidth of this signal is "way low" so you can filter the PWM output with a (say) 1Hz low pass filter. On Wed, Dec 5, 2012 at 4:57 AM, Jim Lux <jim...@earthlink.net> wrote: > On 12/5/12 12:06 AM, Bruce Griffiths wrote: > >> Hal Murray wrote: >> >>> albertson.ch...@gmail.com said: >>> >>>> What is the simplest phase detecter that could work? I think only >>>> that, and >>>> then a duouble oven crystal from eBay, a GPS and and Arduido. >>>> >>> You also need a good D2A to drive the EFC on the osc. >>> >>> >>> A synchronous filter of a suitably level translated (CMOS analog switch >> plus low noise reference) PWM output should work well. >> > > True.. but I think the OP was wanting something that doesn't require > designing a circuit and building it. -- Chris Albertson Redondo Beach, California _______________________________________________ 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.
