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(上接2011年第1期72页)5.6匹配传输线技术5.6.1何时使用匹配传输线为获得良好的信号完整性,降低对数字信号的过冲和振铃信号的强度以提高产品功能的可靠性,当信号从源到负载的传输时间超过tr/2时(tr为印制线传输数字信号的最短上升时间,若下降时间小于上升时间,则使用下降时间),数字产品设计原则上通常要求使用匹配
(Continued on page 1 of 72) 5.6 matching transmission line technology 5.6.1 When to use matching transmission line To get good signal integrity, reduce the overshoot of digital signals and ringing signal strength to improve the reliability of product features When the signal transmission time from the source to the load exceeds tr / 2 (tr is the shortest rise time of the digital signal transmitted by the printed line, and if the fall time is less than the rise time, the fall time is used), the digital product design principle generally requires Use match