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There are many methods of analyzing a multi-Gb/s serial channel, and one of the newer emerging methods is channel operating margin, or COM. COM is used by Ethernet as a method for identifying channel quality, by comparison of a signal to noise ratio (with some underlying assumptions).
With HyperLynx, channels can quickly and easily be analyzed using this COM methodology. To view this video, click here.
Pete Starkey, I-Connect007
The accuracy of signal integrity modelling continues to improve, and stackup tools are becoming widely used, which now include material suppliers' datasheet information. During the recent electronica show in Munich, Germany, Martyn Gaudion, managing director at Polar Instruments, explained how Polar often serves as a bridge between PCB design and fabrication, and why educating his customers is so critical.
Andy Shaughnessy, Design007 Magazine
When we started planning this issue on design data, I knew we’d have to speak with PCB designer and EPTAC design instructor Steph Chavez. In this interview, he explains some of the biggest issues related to good design data handoff, and he offers some ways forward.
Errors and inaccuracies slow the process down because the CAM department has to correct their data package or ask customers to clarify their intent. In the quick-turn prototype business where people pay for time, a slowdown on a three-day turn can be a disaster. I recently sat down with Thompson to find out more about his new book and discuss the quest for the perfect data package.