SI-forum H25

Tabbed Routing is a breakthrough technique for improving signal integrity in high-speed PCB layouts, especially in DDR DIMM applications. By adding trapezoidal tabs to traces, it helps control impedance and reduce crosstalk in dense routing areas. This presentation outlines its theoretical basis, practical design rules, simulation results, and implementation using Allegro software. Ideal for engineers tackling signal quality challenges in compact, high-speed designs.

We will share our experience with the process of design and production of networking device with SFP+ ports and validating the signal integrity performance of its tranceivers. Both the DUT (OSHWA NO000005) and the SFP to SMA coaxial breakout module (OSHWA NO000009) used are opensource-hardware KiCAD designs published by us with the intent to serve as request for comment and reference designs that can be modified and improved by the SI community.

Crosstalk is a critical signal integrity issue for any electronics engineer working with PCBs. This presentation breaks down the core concepts of near-end (NEXT) and far-end (FEXT) crosstalk, explaining how these phenomena arise and how they impact signal quality. It will focus on stripline routing and reveal why this configuration effectively eliminates FEXT. Finally, it will explore how this unique characteristic can be exploited to your advantage in high-speed designs.

Få prosjekter har krevd så mye start-with-why, eller HVEM, som Bærum Barneteaters julestjerne. Se hva som skjer når en ivrig pappa og elektronikk-ingeniør drar alle pinnene ut av orgelet på en gang! (Og oppdager at systemet han lagde kjører på randomisert 12mHz AC.