The figure below shows an example of a phase noise plot for a 100 MHz MEMS oscillator (12 kHz to 20 MHz) from SiTime with 478 femtoseconds of integrated RMS phase noise.
For more information, see the following application notes on clock jitter and phase noise.
Clock Jitter and Measurement (PDF)
This application note describes the common types of jitter encountered in high-speed systems and provides guidelines on how best to measure jitter.
- Period Jitter
- Cycle to Cycle Period Jitter
- Long Term Jitter
- Phase Jitter
- Time Interval Error (TIE)
Phase Noise and Jitter Requirements for Serial I/O Applications (PDF)
This application note reviews the phase jitter requirements for several applications and describes how to better analyze phase jitter requirements beyond the traditional 12 kHz to 20 MHz jitter range.