Articles Tagged with ''Signal Integrity''

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Zero Cost SerDes System Channel Simulation

In this paper, John Baprawski gives an overview of modeling SerDes systems in a channel simulator, introduces the zero-cost tools available at SerDesDesign.com, and gives an example of simulating a SerDes system with Tx and Rx IBIS-AMI models – all to bring the SI engineer a low cost path for modeling and simulating SerDes systems.


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Fixing Signal Integrity Issues in Software

In this article, Donald Telian shares an excerpt from his new book, “Signal Integrity, In Practice,” exploring how optimizing SES both fixes problems and improves system performance. He posits it’s crucial for hardware and SI engineers to understand how to optimize SES; read on to see why he attributes such importance to it. 


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Book Review: Signal Integrity in Practice by Don Telian

If you’ve just started on the path of designing high-speed serial links or have designed dozens of your own, Don Telian’s Signal Integrity in Practice is the book that will accelerate your engineering judgment and possibly save you from multiple design spins. Eric Bogatin takes a closer look at what he considers a must-have book for new and experienced engineers.

 


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What to Expect in a Multi-Drop Bus

In earlier DDR systems, the clock, command, and address signals (here in referred to as C/A) were distributed to multiple DRAMs using a forked topology, in which these signals propagate to all the DRAMs in the system at approximately the same time. The propagation delays on the command and address lines (in such systems) introduced timing skew into the system, limiting the operating frequency of the bus and eventually impacting the performance of these memory systems.


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Those Pesky Half-Wave Resonances

“Over the years I’ve come to realize that, particularly in signal integrity, half-wave resonances are often the cause of ugly S-parameters. You can argue that any type of resonance would cause problems, and you would be right. However, half-wave resonances are easily formed in topologies.” This article summarizes observations from Gustavo Blando on the formation and mitigation of half-wave resonances, and includes an in-depth study on the topic in PDF format from the author.


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Range and Standard Deviation: Comparing the Stochastic Model with Real-World

How well do statistical models predict the behavior of real-world systems?  How can we make predictions about the likeliness and severity of worst-case system behavior?  In this article, the authors explain how they used a function generator and oscilloscope to collect varying population sizes of measurement parameter results in order to investigate the accuracy of a statistical model's predictions.


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