ATLANTA, GA – UP Media Group Inc. today announced publication of a new e-book by Charles Pfeil titled High-Speed Constraint Values and PCB Layout Methods. The free download, available from UPMG, includes the Constraint Value Calculator, an Excel-based worksheet developed by Pfeil.

High-Speed Constraint Values and PCB Layout Methods encompasses lessons learned from Pfeil’s five decades in PCB design. It covers critical length, reference planes, timing, skew, crosstalk, coupling, vias, and routing. The book provides the underlying equations and specializes in practical solutions for real-life signal problems.

The Constraint Value Calculator that comes with the e-book provides rules with appropriate constraint values for high-speed designs. It includes options for edge rate, dielectric constant, and height between the layers to determine constraint values.

In the forward for the new e-book, leading high-speed expert Rick Hartley writes, “This fabulous treatise allows PCB designers and engineers to understand all the important constraints and determine their values in a fast and precise manner using the accompanying calculator. The calculator is marvelously designed and simple to use.”

Both High-Speed Constraint Values and PCB Layout Methods and The Constraint Value Calculator are available for free via the PCD&F website at https://pcdandf.com/pcdesign/index.php/constraints.

About the Author

Charles Pfeil has spent over 50 years in the PCB industry as a designer, owner of a service bureau, and in engineering management and product definition roles at Racal-Redac, ASI, Cadence, PADS, VeriBest, Mentor Graphics, and Altium.

Most of his career was at Mentor Graphics, where he was a software architect focused on advanced development of PCB design tools. He was the original product architect of Expedition PCB, and an inventor of Team PCB, XtremePCB, XtremeAR, and the Sketch Router. He previously authored BGA Breakouts and Routing.

He was inducted into The Dieter Bergman Hall of Fame for PCB Design in 2013. Contact the author at PCBconstraints@gmail.com.

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