A Signal Integrity Laboratory for Instruction in High Speed Digital VLSI and Electromagnetics

该实验室使用信号完整性的概念来增加电磁学和高速数字设计(在VLSI和电路板级别)的课程，面向计算机和电气工程的初级和高级学生。高速(50 MHz)数字设计的普及要求计算机工程专业的学生对各种媒体中信号传播的电磁效应有深入的了解。本实验中进行的实验描述了使用时域反射仪(TDR)和时域传输(TDT)结合模拟和分析来识别、测量和解决信号完整性问题。这些实验既是为了说明电磁学的课程材料，也是为了教育学生了解它的用处。这个以应用为导向的实验室也有助于提高人们对电磁学课程的兴趣，尤其是计算机工程专业的学生。混合信号(模拟/数字)电路已经在无线网络中发挥作用，可以预期在航空电子和智能高速公路应用中，以及个人和商业导航中。一个由基金资助的混合信号集成电路设计再培训计划可以利用这个实验室作为补习资源，并将作为当前本科生关于电磁学基础广泛相关性的实物课程。教学目标包括波的传输和反射的概念，数字/混合信号系统中的阻抗匹配，了解高速测量的问题、可能性和技术，以及快速数字示波的介绍。该实验室还将作为资源，用于生成和评估高速电路制造中的现实设计练习。

This laboratory uses the concept of Signal Integrity to augment the curricula in electromagnetics and high-speed digital design (both at the VLSI and board levels) for junior and senior level students in computer and electrical engineering. The proliferation of high-speed ( 50 MHz) digital designs requires that computer engineering students develop a sophisticated understanding of the electromagnetic effects of signal propagation in various media. The experiments performed in this lab describe the use of time-domain reflectometry (TDR) and time-domain transmission (TDT), in conjunction with simulation and analysis, for identifying, measuring and solving signal integrity problems. The experiments serve both to illustrate the course material in electromagnetics and to educate the students as to its usefulness. This applications-oriented laboratory also serves to increase interest in the electromagnetics curriculum, particularly amongst computer engineering students. Mixed-signal (analog/digital) circuits have come into their own for wireless networks and can be expected in avionics and intelligent highway applications, as well both personal and commercial navigation. A funded program for retraining in the design of mixed-signal integrated circuits may draw upon this laboratory as a remedial resource, and will serve as an object lesson to current undergraduates about the broad relevance of electromagnetics fundamentals. Educational objectives include the concept of wave transmission and reflection, impedance matching in digital/mixed signal systems, understanding the problems, possibilities, and techniques of high-speed measurements, and an introduction to fast digital oscillography. The laboratory will also serve as a resource for generating and evaluating realistic design exercises in high-speed circuit fabrication.