[time-nuts] sine to square wave circuits - performance data?
Bruce Griffiths
bruce.griffiths at xtra.co.nz
Tue Oct 3 23:19:10 UTC 2017
PN measurements for LTC6957-4 here:
http://www.ko4bb.com/getsimple/index.php?id=phase-noise-and-other-measurements-with-a-timepod
NB HX2410 plot below is for a Holzworth sine to CMOS converter.
Bruce
> On 04 October 2017 at 12:02 Bruce Griffiths <bruce.griffiths at xtra.co.nz> wrote:
>
>
> Attila
>
> I have measured the PN of the LTC6957-4 at 10MHz.
>
> I could measure the PN of the TAPR variant of the Wenzel circuit as well as the PN of the comparator based circuit (with CMOS output buffer).
>
> Bruce
>
> > >
> > On 04 October 2017 at 11:38 Attila Kinali <attila at kinali.ch> wrote:
> >
> > Moin,
> >
> > The last couple of days, I have been looking into sine to square
> > wave converters. There are a few proposed circuits[1-4] and there
> > is of course Collins' paper [5]. But I am unable to find actual
> > performance data of the different circuits. Does someone have
> > such data and would share it with me/us?
> >
> > Attila Kinali
> >
> > [1] http://www.wenzel.com/documents/waveform.html
> > [2] http://www.ko4bb.com/~bruce/ZeroCrossingDetectors.html
> > [3] http://www.ko4bb.com/~bruce/CLKSHPR.html
> > [4] https://www.tapr.org/kits_t2-mini.html
> > [5] "The Design of Low Jitter Hard Limiters", by Collins 1996
> >
> > http://ieeexplore.ieee.org/document/494304/
> > --
> > You know, the very powerful and the very stupid have one thing in common.
> > They don't alters their views to fit the facts, they alter the facts to
> > fit the views, which can be uncomfortable if you happen to be one of the
> > facts that needs altering. -- The Doctor
> >
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