高速PCB的信号完整性分析与硬件设计

发布时间：2018-04-24 01:33

本文选题：信号完整性 + PCB　；参考：《西安电子科技大学》2016年硕士论文

【摘要】：在现代高速PCB设计中,研究信号完整性问题在于:对于PCB(印刷电路板)来说,信号完整性是其能否设计成功的关键因素。而随着系统时钟的频率和信号边沿的陡峭程度,在如今的高速数字电路设计中的要求越来越高,为了得到高质量的产品,我们需要进行信号完整性分析设计。本文的工作,在于解决高速PCB的信号完整性问题,在理论分析的基础上,仿真分析高速信号的波形,并根据仿真结果指导最终的PCB的设计。信号完整性分析的优点是可以有效减短产品的开发周期,在设计开发过程中降低成本,并在产品的完成上提供更高的可靠性。首先,在查阅大量的文献资料的基础上,详细介绍了信号完整性问题;信号完整性分析需要仿真软件的参与,介绍了在仿真软件的参与下,信号完整性分析的仿真流程;国内外的研究现状对本课题研究具有指导意义,作者对其进行了总结。其次,需要理论依据分析各种问题,而信号完整性问题的首要理论依据为传输线理论,在该理论的基础上,对反射和串扰进行仿真与分析,反射和串扰是高速PCB设计中的信号完整性问题的重中之重,在仿真的基础上找到解决这些影响的方法。再次,对具体设计——新体制成像系统的产品特点、硬件结构原理图和关键网络进行了阐述。另外,详细分析了新体制成像系统的整体布局布线和层叠设计,并对PCB的关键信号的信号完整性进行仿真分析及应用。最后,总结本文得出的结论,并对实际高速PCB设计以及与其相关的应用具有一定的指导意义。
[Abstract]:In modern high-speed PCB design, the problem of signal integrity research is: for PCB (printed Circuit Board), the signal integrity is the key factor to the success of its design. With the frequency of the system clock and the steepness of the signal edge, the requirement of the high-speed digital circuit design is becoming higher and higher. In order to get the high quality products, we need to carry out the signal integrity analysis and design. The work of this paper is to solve the problem of signal integrity of high speed PCB. On the basis of theoretical analysis, the waveform of high speed signal is simulated and analyzed, and the final design of PCB is guided by the simulation results. The advantage of signal integrity analysis is that it can effectively shorten the product development cycle, reduce the cost in the process of design and development, and provide higher reliability in the completion of the product. First of all, on the basis of consulting a lot of literature, the signal integrity problem is introduced in detail, and the simulation flow of signal integrity analysis is introduced with the participation of simulation software. The research situation at home and abroad is of guiding significance to the research, and the author summarizes it. Secondly, all kinds of problems need to be analyzed theoretically, and the primary theoretical basis of signal integrity is transmission line theory. On the basis of this theory, the reflection and crosstalk are simulated and analyzed. Reflection and crosstalk are the most important problems of signal integrity in high-speed PCB design. Thirdly, the product characteristics, hardware schematic diagram and key network of the new system are described. In addition, the overall layout, wiring and stack design of the new imaging system are analyzed in detail, and the signal integrity of the key signals of PCB is simulated and applied. Finally, the conclusion of this paper is summarized, and it has certain guiding significance for the design of high speed PCB and its related applications.
【学位授予单位】：西安电子科技大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：TN41

【相似文献】