Hi Andy, The simplest way is to use a low pass filter with a notch capability for the second and third harmonics. You can find the schematic and response for 5 and 10 MHz here:
http://www.timeok.it/files/5_and_10mhz_low_pass_notch_filter.pdf ciao, Luciano timeok see: www.timeok.it On Mon, May 20, 2013 at 1:30 AM, Andy Bardagjy <[email protected]> wrote: > Hi folks, I recently picked up a Symmetricom SA.22c rubidium oscillator. > According to the datasheet, it outputs a square wave with programmable > frequency (well you can pick among some set of frequencies). > > I'd like to build up a small circuit locked to the square wave output which > outputs a 10MHz sine wave for use as my "house clock" for my various > instruments (spec an, counter etc). I of course could distribute the square > wave, but am concerned about harmonics, among other things. > > The FE-5680A uses a AD9830A DDS to synthesize its output. Is a DDS the > right way to go - in terms of performance, phase noise and so on? > > I suppose I could do this with a tank or some other analog circuit, but.. > > Andy Bardagjy > bardagjy.com > _______________________________________________ > 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. > -- Luciano Timeok visit : www.timeok.it _______________________________________________ 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.
