Thank you, Azelio! I don't suppose there's an impromptu FAQ page out there, is there?
-CH On Jul 19, 2012, at 11:58, Azelio Boriani <azelio.bori...@screen.it> wrote: > This is sort of a FAQ: the argument was already discussed here. One of the > most interesting idea (in my opinion) is to use an RS485 line receiver like > the ST3485, MAX483, ADM485. They are actually transceivers so they must be > tied permanently in RX. Since they are differential you can also put a 1:1 > (or a 1:4 to raise the level) transformer to isolate the input too. > > On Thu, Jul 19, 2012 at 6:03 PM, Chris Hoffman <cq.k...@gmail.com> wrote: > >> Can anyone suggest a good reference design for a zero-crossing detector? I >> am trying to home an ADC sampler trigger to the 1VRMS (50ohm) 10MHz sin >> from my XL-DC... And now I'm thinking that I should just home the uC clock >> to it, as well. >> >> Essentially, I believe that I'm looking for an efficient, stable, and >> accurate sine-to-square converter... and I'll welcome any advice in this >> area. >> >> This may also be used in a 1KHz 5Vpp IRIG-B decoder... I don't feel like >> rectifying the signal, to be honest. I want to try to keep a smaller BOM, >> sense the waveform primarily, and crunch numbers inside the uC. >> >> >> -CH >> >> Chris Hoffman >> cq.k...@gmail.com >> http://ar.ctur.us >> >> >> >> >> _______________________________________________ >> 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. >> > _______________________________________________ > 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. _______________________________________________ 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.