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PLL Bandwidth and Jitter Spectrum Analysis

Application Notes

The 86100C Infi niium DCA-J Digital Communications Analyzer is well known for its speed, accuracy, and ease-of-use as a jitter measurement tool. (See Keysight Technologies, Inc. Application Note 86100C-1). With a simple press of a button, the jitter of a signal is broken down into its various components including random, periodic, duty cycle distortion, and inter-symbol interference. Precision estimates can then be provided for aggregate deterministic and total jitter.

 

Further insight into jitter properties is achieved by observing the spectral (frequency domain) components of jitter. The DCA-J can isolate and display periodic jitter frequencies and amplitudes to help identify sources of jitter. The sources of random jitter can also be spectrally resolved, but has not been part of the DCA-J solution.

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Column Control DTX