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Donald Telian discusses the nature of collaboration between signal integrity engineers and layout engineers, reflecting on how cooperation can be enhanced to promote teamwork, problem-solving, and productivity. 

Crosstalk problems here to stay as long as interconnects are designed as the open waveguiding systems. Thus, understanding and proper quantification of the crosstalk and mitigation of the consequences are important. This article outlines multiple possible ways to quantify the crosstalk: coupling coefficients, frequency domain metrics, time-domain analysis of crosstalk, and a modern statistical approach. 

Intra-pair skew is a crucial metric when working with multiple lines. Its behavior, measurements, and interpretations are closely linked to other forms of signal degradation, making the definition of a single skew value a nuanced issue that requires careful consideration. In this article, Gustavo Blando and Prashant Pappu introduce three distinct methods for measuring skew, providing options for a wide variety of contexts and skew measurement goals.

In this article, Steve Sandler presents three viable solutions for measuring ultra-low impedance with a maximum of 10 ms, each of which can be performed using sophisticated and novel FFT based 3-port measurement. These methods involve applying digitally modulated patterns to create modulated load currents up to 1500 A and recording the resulting power rail voltage perturbations. 

Channel operating margin (COM) is a well-documented IEEE standard that has been used successfully since 2014 in the design of channels and specification of interconnect. In this article, Rich Mellitz reflects on the COM origin story and considers the future of the standard.

DesignCon gears up to celebrate its 30th anniversary this January with special events, an expo full of leading suppliers, and its highly regarded education.

The need for speed will be the driving force behind energy production and efforts to make increasingly efficient use of available energy. Eric Bogatin reflects upon the evolution of power resources from the Industrial Revolution to today’s generation of AI and network processors.

In this article, Steve Sandler presents several methods of measuring battery impedance, discussing the reasons for conducting such measurements and the challenges one might encounter along the way.

This article describes a phase noise analysis tool that creates a numerical model from discrete phase noise data. The tool includes an adaptive algorithm to identify spurious deterministic components in the data while also creating a physics-based numerical model for the random noise component.

In order to study what is needed and what has been adopted for the next Ethernet speed node of 200 Gbps per lane, this DesignCon 2024 paper, a recipient of the Best Paper Award, investigates different FEC schemes such as end-end, concatenated, and segmented FECs, examining how these different FEC schemes affect signal integrity and performance in different end applications.