Hi, I have been looking at several Dual Mixer Time Difference designs. As far as I know the basic architecture is based on generating a tone with an small frequency offset respect to the nominal clocks frequency, analogue mixing of the clocks, low pass filtering, then a slow zero crossing detector and finally a time interval counter or time stamp unit.
I have this naïf question: would not it be better and simpler to use directly an ECL D flip-flop as a mixer instead of an analogue one? I suppose analogue mixers are preferred because they provide with a better "differential tempco", but using ECL logic can provide also with a good tempco. What is your experience? Cheers Pablo _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
