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高速电路High-Speed Backplanes Pose New Challenges to Comms Designers As backplane speeds move beyond 3 Gbit/s, designers will encounter problems not seen at lower rates. Fortunately, through the use of modeling techniques, designers can tackle these issues head on.
The operating data rates of current state-of-the-art backplane serial links are in the 2.5- to 3.125-Gbit/s range. As silicon becomes available that can support higher data rates into the 5- and 10-Gbit/s range, comm system designers are looking for ways to support these higher rates within their existing backplanes. In the 5- to 10-Gbit/s range, the technical challenges created by phenomenon such as reflections and crosstalk increase. In addition, new voltage- and timing-related challenges have arisen that typically do not exist in low
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