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Practical Guide to Making Advanced Jitter Measurements

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To characterize high-speed digital links, jitter measurements are key to ascertain the quality of the signal being transmitted, and yields a quick view of the Bit Error Ratio that can be supported by the link. The measurement of jitter, even if the user is provided a one-button interface, is a sophisticated affair taking into account clock recovery and knowledge of phase locked loops, jitter decomposition techniques and assumptions for them, crosstalk and its effects, and waveform statistics that require different approaches.

This webcast will review analysis of a digital link and jitter decomposition, introduce whole eye analysis, and guide engineers through details and considerations that should be made in making valid jitter measurements. After viewing this, the engineer will realize the measurement of jitter is an engineering process.


Design, test and validation engineers who characterize jitter budgets in high-speed digital links


Brian Fetz, Program Manager, Agilent Technologies

Brian Fetz is a technical program manager for Agilent Technologies, focused on advanced jitter analysis, de-embedding and digital display interfaces. He graduated from California Polytechnic State University at San Luis Obispo in 1983 and completed a Masters in Electrical Engineering from the University of Idaho in 1991. Prior to his current position, Brian led a technical team in evaluating jitter measurement solutions. Brian is on the board of directors for the Video Electronics Standards Association and serves as the DisplayPort Compliance Test Specification editor.

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