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Phase noise is defined as the ratio of the noise in a 1-Hz bandwidth at a specified frequency offset, fm, to the oscillator signal amplitude at frequency fO. The sampling process is basically a multiplication of the sampling clock and the analog input signal.
You can use this spreadsheet to calculate phase jitter from measured phase noise data, including jitter filtering. Plus, see all the math behind these calculations.
This application note starts with a brief theoretical overview of phase noise and methods of phase noise measurement, and then focuses on practical phase noise measurement recommendations such as properly connecting a signal under test to the instrument, setting up the phase noise analyzer, and choosing appropriate settings.
Jitter and phase noise are some of the key performance parameters of oscillators and other clocking products. With some TI oscillators offering RMS jitter near 100 fs, advanced measurement techniques and equipment can be required to accurately measure device performance.
Noise - Jitter design tool is available here . 1. "Phase Noise - RF & Microwave Phase Noise Measurement Seminar", Hewlett Packard, 1985. 2. "Integrated Phase Noise", application note AN256, Silicon Labs, 2010. 3. "Specifying Local Oscillator Phase Noise Performance: How good is good enough?", Robert Gilmore, Qualcomm Inc. 4.
Associated with phase noise is time jitter of a signal, or simply jitter. Although variations in phase or time of a signal are equivalent, depending on the system, one is usually a more appropriate parameter to describe the resulting errors that are produced in the system.
Enrico Rubiola – Phase Noise – 1. Introduction 2. Spectra 3. Classical variance and Allan variance 4. Properties of phase noise 5. Laboratory practice 6. Calibration 7. Bridge (Interferometric) measurements 8. Advanced methods 9. References 1 www.rubiola.org you can download this presentation, an e-book on the Leeson effect, and some other ...
