On Fri, 29 Jul 2016 00:26:07 +0000 (UTC) Bruce Griffiths <bruce.griffi...@xtra.co.nz> wrote:
> Diophantine Frequency Synthesizer Design for Timekeeping Systems I quickly went over the papers people have pointed me at. Without having gone through all the math, the idea for choosing the PLL values looks neat. The 2-cascaded synthesizer is also the one used by Spectratime for their FemtoStepper, which bring us back to the question: How do they achieve phase steps? I see how offset frequencies are generated (with arbitrary small step sized), but I do not see how this can be turned in fine resulution phase steps when using PLL's as the controlling elements. > Discusses a diophantine synthesiser.Note Sotiriadis' work on diophantine > numbers and frequency synthesis appears to be a rehash of an old Patent > perhaps due to a lack of competent searching for prior art.This issue was > discussed on the list some time ago, Which patent are you refering to? Attila Kinali -- It is upon moral qualities that a society is ultimately founded. All the prosperity and technological sophistication in the world is of no use without that foundation. -- Miss Matheson, The Diamond Age, Neil Stephenson _______________________________________________ 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.