[time-nuts] DPLL for 10MHz

Chris Albertson albertson.chris at gmail.com
Mon May 7 17:07:14 UTC 2012


On Mon, May 7, 2012 at 9:54 AM, Attila Kinali <attila at kinali.ch> wrote:

> What speaks against a simple design as used in the GPSDO by James Miller[1]?
> Or if you want a better PLL than just an XOR gate, use a 74x4046.
> They are still available in DIL, so building a complete PLL is possible
> on a veroboard. This should be enough if you want to improve the short
> term stability below 0.1s, where the fury rises above it's long term humb.

That is my solution.  The 74x4046 come in a version that will do
10MHz.   I use it to let a 10MHz reference that has poor short term
noise drive an OCXO.    It's all analog and not many parts.

Chris Albertson
Redondo Beach, California



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