One method is to have the event trigger sampling of a pair of quadrature phase
sinewaves. eg LT1407A-1 dual 14 bit SAR ADC can sample a quadrature pair of
10MHz sine waves with ~ 5ps resolution in the computed phase.
Bruce
On Wednesday, 4 May 2016 10:00 PM, Attila Kinali <att...@kinali.ch> wrote:
On Tue, 3 May 2016 22:31:14 +0200
Magnus Danielson <mag...@rubidium.dyndns.org> wrote:
> An alternative to the edge estimator method is to continuously sample,
> mix with a reference frequency, decimate and then do arc-tangent of the
> I/Q samples. This is what is used for phase-noise measurement such as
> the Symmetricom/Microsemi test-kits, TimePod, and also the new R&S
> phase-noise system.
The "signal" is not a sinusoid, but discrete events. Think of it
as incomming pulses and you want to measure their arrival time.
Attila Kinali
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