On Wed, Oct 8, 2014 at 3:52 AM, Hal Murray <hmur...@megapathdsl.net> wrote:
> > br...@ko4bb.com said: > > Kratos (www.kratosepd.com) do fast switching synthesiser subsystems > that > > can be locked to a reference.. > > What does "fast switching" mean in the context of a DDS? > > What does the spectrum of a DDS look like if I switch back and forth > between > 2 frequencies at 1 KHz? Or what question should I be asking? > The bare AD DDS chips do textbook-perfect phase-continuous FSK quite nicely. This is not the same as "phase-coherent". AD does have some good app notes on implementing phase coherent FSK. Tim. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
