Chapter 19 Summary: When is a Design High-Speed?
In Chapter 19, the author addresses this question that has been around for years. Everyone seems to recognize low-speed designs and high-speed designs, but exactly where is the cutoff between the two? Clock frequency is often used as a barometer for determining speed: If the clock frequency is low, it must be a low-speed design, according to popular convention. But in this chapter, the reader will learn hard and fast calculations for determining whether or not a design is high-speed, and whether a transmission line requires reflection management or not.
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