Hello, I have been following the posts here for a while and learned alot. I thought I could get some help as well. I need to detect less than 20 ps between two incoming pulses from a detector. pulses are 5ns wide and the rise time and fall time is around 2ns each. I am planning to use a constant fraction discriminator, simply a fast comparator with less than 500 MHz bandwidth for zero crossing detection and providing a very sharp edge. Then this can be fed into a TDC such as GPX2 or anything of this sort. I think these can be fairly easily implemented on FR4. Recently I stumbled upon LTC6957-4 logic converter from another discussion. Can anyone guide me if this can be used for producing a sharp edge from a pulse that I mentioned? Datasheet suggests 0.5 ns rise time is possible but I think this is for single tone sine wave and not a short pulse.
Bests, Mohammad _______________________________________________ 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.
