Phase Noise to Jitter

Jitter from phase noise vs. frequency data Calculates RMS jitter from phase noise power.

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Usage:
Jitter = Pn2Jitter(f, Lf, fc)

Inputs:
f: Frequency vector (phase noise break points), in Hz, row or column.
Lf: Phase noise vector, in dBc/Hz, same dimensions, size(), as f.
fc: Carrier frequency, in Hz, a scalar.

Output:
Jitter: RMS jitter, in seconds.

Phase noise data can be derived from graphical information or actual measurement data.

Comment header documentation gives multiple examples of use with comparison to other phase noise to jitter calculators available in application notes, web sites, Excel worksheets and dedicated phase noise laboratory measurement equipment.

Example:
>> f = [10^0 10^1 10^3 10^4 10^6]; Lf = [-39 -73 -122 -131 -149];
>> Jitter = Pn2Jitter(f, Lf, 70e6)
Jitter = 2.3320e-011

Four other examples of this same data set calculation are given, ranging from 21.135 to 24.56ps. More data set examples include PN9000 data file input and resulting jitter calculation.

Cite As

Arne Buck (2026). Phase Noise to Jitter (https://www.mathworks.com/matlabcentral/fileexchange/22038-phase-noise-to-jitter), MATLAB Central File Exchange. Retrieved .

Acknowledgements

Inspired: LO Sideband with spurs converted to Jitter

General Information

MATLAB Release Compatibility

  • Compatible with any release

Platform Compatibility

  • Windows
  • macOS
  • Linux
Version Published Release Notes Action
1.0.0.0