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. Thanks, /tvb [1] http://www.tapr.org/~n8ur/T2_Mini_Manual.pdf [2] http://www.wenzel.com/documents/waveform.html [3] https://www.onsemi.com/pub/Collateral/MC1489-D.PDF [4] http://www.ti.com/lit/ds/slls092d/slls092d.pdf [5] http://www.ti.com/lit/ds/symlink/ds9637a.pdf _______________________________________________ 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.
