Clock Jitter and Phase Noise

1. What is jitter and phase noise?
2. What is difference between jitter and noise?
3. What is timing jitter noise?
4. What is meant by phase noise?

What is jitter and phase noise?

Phase noise is the instability of a signal's frequency, expressed in the frequency domain, while jitter is a variation of the signal waveform in the time domain.

What is difference between jitter and noise?

Jitter is the variation in a signal's timing from its nominal value. Jitter will manifest itself as variations in phase, period, width, or duty cycle. Noise is the variation of a signal's amplitude from nominal. Both noise and jitter can cause transmission errors and increase the bit error rate of a serial link.

What is timing jitter noise?

Timing jitter is generally defined as the short-term variation of a significant instant of a digital signal from its ideal position in time. There are a number of factors that contribute to random timing jitter, including broadband noise, phase noise, spurs, slew rate, and bandwidth.

What is meant by phase noise?

Phase noise is defined as the ratio of noise power at a given offset frequency to the carrier power. From: Principles and Applications of RF/Microwave in Healthcare and Biosensing, 2017.