[time-nuts] sine to square wave circuits - performance data?

Bruce Griffiths bruce.griffiths at xtra.co.nz
Tue Oct 3 19:19:10 EDT 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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> > 
> >     > 


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