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Measuring Digital Clock Stability and Jitter with an Oscilloscope

Measuring Digital Clock Stability and Jitter with an Oscilloscope

This application note explains how to use oscilloscope measurements to quantify the performance of any digital clock, including processor clocks and communications clocks. It briefly covers amplitude measurements and focuses on clock frequency stability and jitter analysis. It explains the use of measurement statistics to gauge stability over billions of clock cycles and gives an overview of advanced jitter analysis. It uses the 5 Series MSO oscilloscope to illustrate these techniques.