Enter your Carrier Frequency, Integration Start and End Frequencies, and Phase Noise Data Points to calculate RMS Phase Jitter — with results shown in seconds, radians, and the computed Integration Bandwidth so you get the full picture of your oscillator's timing performance.
RMS Phase Jitter
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RMS Jitter (seconds)
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RMS Jitter (radians)
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Integration Bandwidth
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Phase noise is a frequency-domain measurement of oscillator instability, while jitter is the time-domain equivalent. RMS jitter corresponds to the integrated area under the phase noise curve over a specified frequency range.
Phase noise in dBc/Hz represents the ratio of noise power in a 1 Hz bandwidth at a specific offset frequency to the total signal power, expressed in decibels relative to the carrier.
The integration bandwidth depends on your application. For digital systems, typically use 12 kHz to 20 MHz. For RF applications, the range might extend from 1 kHz to several hundred MHz.
RMS jitter determines timing uncertainty in digital clocks, affecting bit error rates, sampling accuracy, and overall system performance. Lower jitter means better timing precision.
The conversion accuracy depends on the density and accuracy of phase noise measurements. More data points across the integration bandwidth provide better accuracy.
Yes, but you need the spectral distribution of the jitter. A single RMS jitter value cannot uniquely determine the original phase noise spectrum without additional assumptions about the noise characteristics.
Jitter is typically expressed in picoseconds (ps) for practical measurements, seconds for scientific calculations, or radians for theoretical analysis. All three units are provided in the results.