Our flagship phase-noise calculator features phase-noise analysis, spurious noise analysis, jitter filtering, normalized variance, and Save as PDF options. You can also import comma-separated value (CSV) data from a text file. It computes metrics for RMS noise, random phase jitter, spur phase jitter, error-vector magnitude (EVM), and random residual FM.
(DEPRECATED) We updated the Desktop Phase-noise Calculator (above) to import comma-separated value (CSV) formatted data, which is typically used by spectrum and signal-source analyzers when saving data in a text file. So, there's really no reason to use this spreadsheet calculator anymore. We keep it here in case you want to view the math to integrate phase-noise data.
This Excel spreadsheet calculator provides a conservative estimate of output total jitter (TJ) when connecting several elements in series, given each element's jitter contribution in terms of its random (RJ) and deterministic jitter (DJ) components. Alternatively, one may begin with a target output total jitter, then budget jitter to each element in the link to meet this target. In either case, each element's jitter may be tweaked to understand its effect on system performance while optimizing a jitter budget.
Note that this simple calculator makes assumptions that tend to over-estimate the output node's total jitter value. Use it with the intent of revealing potential problems in a system, rather than guaranteeing the system will work trouble-free.