[time-nuts] ICS525 synthesizer performance

John Ackermann N8UR jra at febo.com
Sun May 14 19:04:30 EDT 2006

I got my prototype ICS525 "Clock-Block" built this weekend, and had a
chance to use my friend's HP3048A phase noise system to measure it.
I've put the results, plus some other info, at
http://www.febo.com/time-freq/hardware/ICS525/index.html .

The bottom line is that the phase noise isn't great, and is quite
variable depending on the divider ratios used, but isn't as horrible as
I thought it might be.  It's not going to make a good LO for your
receiver, but for some other applications it could be perfectly
acceptable, particularly if you can follow it with some filtering to
knock down the wide band noise.


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