[time-nuts] fast freq. synthesis schemes

Luis Cupido cupido at mail.ua.pt
Wed Oct 14 19:25:20 UTC 2009


I'm looking for the schemes used on the
frequency synthesizers that change frequency
in few microseconds time (or less)
at microwaves lets say circa 12-18Ghz)
Obviously with some resolution (let's say 100Khz step
or in that order)(otherwise it would
be a trivial exercise in the BW of the PLL loop filter)

Does anyone know of some paper or tech notes from
some instrument or modules that show block diagrams
of such?

I have many info on mw synthesizers but all fall into
microwave radio style of things with much higher
resolution (khz and less) and much longer
switching times (millisencods or more).
Info on fast stuff I can't really find.

I'm thinking of experimenting on something along those
lines so... all comments are welcome.


Luis Cupido.

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