Hi
> On Oct 4, 2017, at 11:21 AM, Mark Sims <hol...@hotmail.com> wrote: > > Wenzel says an HC device tends to work better than an AC device in squarer > applications. That’s not the case for broadband phase noise or for close in jitter. The issue with the older AC parts is the crummy lead frame pinout. Setting them up so they did not oscillate was not as easy as it should have been. More modern single gate packages no long have those issues. There is always an … except … If you do a “feedback resistor” bias, forget about any sort of fast gate. Bias it with two resistors on the input and it should be fine. If the second resistor blows your budget then yes, it’s a issue. Bob > > My calibrator board has a place for the feedback resistor so that I can > implement the second LPRO circuit (or add hysteresis to the squarer gate. > > ---------------- > >> I find it interesting that a simple 74AC04 performs so well (given enough > input power) compared to even an LT1016. > _______________________________________________ > 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.
