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Impulse Response from Insertion Loss

This article explains how to convert channel insertion loss data in a standard Touchstone file into the channel impulse response for time domain simulations. It also shows how some pre-processing of the Touchstone data can help improve results by eliminating the ringing that results from the use of frequency-limited measurement data. Read on to see how.


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Options for Copper Beyond 112 Gbps

Future data center and high-speed computation require faster connectivity to meet the increasing set of applications and bandwidth. IEEE and OIF have developed 106-112 Gbps per lane electrical interface specifications P802.3ck1 and CEI-112 G2 for the 400 GbE system. To meet the next-generation system bandwidth requirement, industry and standard bodies recently kicked off new projects aiming at 800 GbE or even higher speeds beyond 1 TbE. So what comes next beyond 112 Gbps for electrical interfaces over copper (Cu) channels? Will it be 224 Gbps?


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EDI CON Online Reg Open

EDI CON Online Opens Registration

EDI CON Online, an interactive event being held online Tuesdays in October 2020, has opened registration. Attendees can register for free in a single sign-on portal for all technical sessions, workshops, and keynotes occurring every Tuesday in October (and on demand after the event). 


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EDI CON Online Announces Platinum Sponsors and Keynote Speakers

EDI CON Online, an interactive event being held online Tuesdays in October 2020, has announced its platinum sponsors and keynote speakers. In its second year, the event’s technical, workshop, and keynote sessions will occur at no cost to attendees and will be available live with question and answer sessions or on demand after the event.


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A Guide for Single-Ended to Mixed-Mode S-parameter Conversions

Signal integrity engineers almost always have to work with S-parameters. If you have not had to work with them yet, then chances are you will sometime in your career. As speed moves up in the double-digit GB/s regime, many industry standards are moving to serial link-based architectures and are using frequency domain compliance limits based on S-parameter measurements.


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A Simple Demonstration of Where Return Current Flows

This simple measurement demonstrates the most important principle in SI/PI and EMI: that the return current will flow in the path of lowest resistance below about 10 kHz. But above about 10 kHz, the return current will begin to redistribute in the return path to be adjacent to the signal conductor. Read on to learn more.


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