Jitter Conversions
Phase noise is sometimes also measured and expressed as a power obtained by integrating ℒ(f) over a certain range of offset frequencies. For example, the phase noise may be -40 dBc integrated over the range of 1 kHz to 100 kHz. This Integrated phase noise (expressed in degrees) can be converted to jitter (expressed in seconds) using the following formula:
In the absence of 1/f noise in a region where the phase noise displays a –20 dBc/decade slope, the rms cycle jitter can be related to the phase noise by:
Likewise:
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