This application note:

• Describes the connection between signal integrity, specifically jitter, and power integrity
• Gives a brief review of jitter measurements and terminology, including eye diagrams and jitter decomposition
• Covers random and periodic jitter on clocks and relates periodic jitter to power integrity
• Describes sources of noise on power integrity, especially noise likely to cause jitter on serial data lines
• Gives an example of the impact of ripple on a power rail causing jitter on a clock