If you break the DC control chain of the PLL with a A2D and a controller and back with a D2A .. you would program the control with any kind of behavior you want. Just a thought!
Raj, vu2zap At 18-09-2012, you wrote: >I'm looking for info on behavior of a PLL (with VCXO) when the reference comes >and goes periodically. When the reference is gone, the PLL will "flywheel" >according to whatever the loop filter does. (we can turn off the "input" to >the filter, so we're not trying to track noise).. > >What I'm particularly interested in is the behavior in the PLL when the >reference returns. > >The overall situation is where we are trying to make a frequency/phase >measurement over 10-100 seconds, where the reference has a 50% duty cycle, and >is on for a second, off for a second. _______________________________________________ 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.
