according to some lecture notes:
absolute jitter < 2*period jitter
period jitter < 2*adjacent period jitter.
Is it true?
It is easy to understand period jitter<2*adjacent period jitter. But why absolute jitter<2*period jitter?
---------- Post added at 02:20 ---------- Previous post was at 01:47 ----------
while some other reference suggest absolute jitter increase with measurement time
Absolute jitter is the absolute difference in the position of a clock's edge from where it would ideally be.
Period jitter (aka cycle jitter) is the difference between any one clock period and the ideal clock period.
I would say
If you have a defined absolute Jitter of +- something
your equation absolute jitter < 2*period jitter is correct
but if you have a defined period jitter of +- something
you can not know how your absolute jitter is.
Because in this case a small period jitter can integrate to a large absolute jitter
while some other reference suggest absolute jitter increase with measurement time
I would say
If you have a defined absolute Jitter of +- something
your equation absolute jitter < 2*period jitter is correct
but if you have a defined period jitter of +- something
you can not know how your absolute jitter is.
Because in this case a small period jitter can integrate to a large absolute jitter