Now, if one added an optional TTL threshold 5V CMOS single gate inverter/buffer to produce 5V output when required and added an SMT 5V->3.3V regulator and mounted it all on a small PCB with pins to make it DIP compatible that would meet the brief and then some.
Otherwise an SMT (not many DIP ones left) comparator mounted on a DIP/SMT converter board would also work albeit with a PN/jitter performance penalty. Bruce > On 20 January 2018 at 11:37 Gerhard Hoffmann <dk...@arcor.de> wrote: > > > > > Am 19.01.2018 um 20:31 schrieb Tom Van Baak: > > John's TADD-2-mini [1] 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 > > [2]. That would be an ideal single-chip 5 V solution for me but the two > > parts he mentions, MC1489 [3] and SN55182 [4], 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 [5]? This isn't for cesium work so it doesn't have to be quite > > as good as the TADD-2. > < http://cds.linear.com/docs/en/datasheet/6957fb.pdf > > < http://cds.linear.com/docs/en/design-note/dn514f.pdf > > > I have used it, found no problems. It is somewhat small :-) > > regards, Gerhard > > > > _______________________________________________ > 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.
