Articles by Donald Telian

Serial links have focused the practice of signal integrity on managing loss and discontinuities. Each system struggles with one or the other, making it imperative to determine which issue is dominant in your system and respond appropriately. This article by Donald Telian will explain how to characterize your link to help guide your thinking and your solution.

In this article, Donald Telian explains why discontinuities do not sum the same way as loss. Telian outlines that a failing an RL mask might indicate that Tx or Rx are simply too close to a discontinuity, causing the discontinuity proximity effect. Read on to learn more about how to to distance SerDes from discontinuities.

In this article, Donald Telian supplies a reference point for making the task of implementing via impedances, thus removing via impedance discontinuities, less daunting. Read on to find out how he can help.

This article by Donald Telian applies Eric Bogatin’s 0.3/Gbps rule of thumb to identify and prevent signal degradation due to stubs.

This Best DesignCon paper demonstrates what happens when GRVs are too distant for the data rate at hand. Read on. 

What causes crosstalk? When does it become problematic? What can you do to ensure it does not ruin your product design? In this article, Donald Telian answers these questions and more.

In Donald Telian’s book he reveals his steps for successful serial links, called the “7 Steps to Successful Serial Links.” In this article, he discusses his most important steps: (one) minimize discontinuities, and (two) manage loss.  

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. 

Understanding and minimizing discontinuities is increasingly important as serial links become both shorter and faster. Applying the old edge rate to roundtrip relationship to the modern era, Donald Telian in this article offers a rule-of-thumb to help gauge which interconnect structures, and hence discontinuities, to care about – and to what degree.