convert phase noise into jitter




which have very good explanation on this phase noise and jitter
This application note on clock (CLK) signal quality describes how to measure jitter and phase-noise, including period jitter, cycle-to-cycle jitter, and accumulated jitter. It describes the relationship between period jitter and phase-noise spectrum and how to convert the phase-noise spectrum to the period jitter.

http://www.maxim-ic.com/app-notes/index.mvp/id/3359

Clock (CLK) signals are required in almost every integrated circuit or electrical system. In today’s world, digital data is processed or transmitted at higher and higher speeds, while the conversions between analog and digital signals are done at higher resolutions and higher data rates. These functions require engineers to pay special attention to the quality of clock signals.

Clock quality is usually described by jitter or phase-noise measurements. The often-used jitter measurements are period jitter, cycle-to-cycle jitter, and accumulated jitter. Among these jitters, period jitter is most often encountered. Clock phase-noise measurement examines the spectrum of the clock signal.

This article first briefly reviews the measurement setups for clock period jitter and phase noise. The relationship between the period jitter and the phase-noise spectrum is then described. Finally, a simple equation to convert the phase-noise spectrum to the period jitter is presented.

so also check the online calculator
http://www.raltron.com/cust/tools/osc.asp

Re: How I can convert phase noise into jitter

This is a very good calculator which converts phase noise into jitter
This calculator converts single-sideband phase noise into phase jitter. It is ideal for limited data sets (up to 20 segments), for example, as found in datasheets, or derived from piece-wise linear approximations of actual phase-noise plots graphed on a log-log scale. Larger data sets, such as raw data output from test equipment, are more appropriate for a spreadsheet-based converter, which is discussed in an article found here. Avoid including spurs in the phase noise data if you intend to use the integrated RMS phase jitter value to estimate BER numbers.

http://www.jittertime.com/resources/pncalc.shtml


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