[time-nuts] minimalist sine to square
bruce.griffiths at xtra.co.nz
Fri Jan 19 17:10:41 EST 2018
What's the input signal amplitude?
What's the desired output signal (eg 5V CMOS, 3.3V CMOS etc)?
> On 20 January 2018 at 08:31 Tom Van Baak <tvb at LeapSecond.com> wrote:
> John's TADD-2-mini  uses the Wenzel sine-to-square converter. It performs very well but requires +10 V.
> I'm looking for a solution that works at 5 V (e.g., USB powered) and also uses fewer parts. Wenzel also mentions using a differential line receiver . That would be an ideal single-chip 5 V solution for me but the two parts he mentions, MC1489  and SN55182 , don't appear fast enough for a 10 MHz input.
> Can any of you circuit experts suggest some line receivers that would work? Maybe DS9637 ? This isn't for cesium work so it doesn't have to be quite as good as the TADD-2.
>  http://www.tapr.org/~n8ur/T2_Mini_Manual.pdf
>  http://www.wenzel.com/documents/waveform.html
>  https://www.onsemi.com/pub/Collateral/MC1489-D.PDF
>  http://www.ti.com/lit/ds/slls092d/slls092d.pdf
>  http://www.ti.com/lit/ds/symlink/ds9637a.pdf
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