Hi The board I have uses high speed CMOS single gate XOR’s. They have a pretty good phase noise floor (-170’s) so they should be pretty reasonable.
Bob > On Jan 8, 2016, at 12:16 PM, Richard (Rick) Karlquist <[email protected]> > wrote: > > > > On 1/7/2016 3:11 PM, Bob Camp wrote: >> Hi >> >> If your intention is to run a mixer with saturated inputs …. just run >> an X-OR gate. It will handle the high level signals much better than >> an over-driven analog part. > >> Bob >> > > If you look at the schematic of an XOR gate IC and compare it > to the schematic of, for example, an MC1496 mixer, you will > see a lot of similarity. If the gate is of the ECL type, > it will have the addition of emitter followers, but that > it a minor detail of implementation. I'm not sure there > is a huge difference. ECL is a great logic family in > general (self-confessed ECL-phile here :-) but it is > probably the worst for phase noise, compared to the > saturating logic types. > > Rick Karlquist N6RK > _______________________________________________ > 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. _______________________________________________ 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.
