> I have measured the PN of the LTC6957-4 at 10MHz. > > I could measure the PN of the TAPR variant of the Wenzel circuit as well as > the PN of the comparator based circuit (with CMOS output buffer). >
These plots came from the Wenzel diff-amp shaper: http://www.ke5fx.com/wenzel_resid_PN.png http://www.ke5fx.com/wenzel_resid_ADEV.png I don't recall many details of the test setup, or how faithful my implementation of the shaper was to Charles W.'s app note, but this is representative of several plots I have lying around. Not bad performance at all for the cost/complexity involved. -- john, KE5FX Miles Design LLC _______________________________________________ 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.
