High-speed signal equal-length control algorithm, PCB (Printed Circuit Board) wiring method and PCB

Abstract

The invention discloses a high-speed signal equal-length control algorithm, a PCB (Printed Circuit Board) wiring method and a PCB. The high-speed signal equal-length control algorithm comprises the following steps that: on the basis of a preset 10-degree principle, according to a signal transmission period and a click period, determining equal-length tolerance to meet a system time sequence requirement; and through a ratio of the equal-length tolerance and a signal time delay rate, obtaining a high-speed signal equal-length control range. By use of the embodiment of the invention, on the basis of the preset 10-degree principle, the high-speed signal equal-length control range is calculated, a design principle and an algorithm with theoretical support can be provided for traditional high-speed circuit PCB design for carrying out key signal equal-length processing so as to be simple and practical, and the working efficiency of PCB design engineers can be greatly improved while the system time sequence requirement is met.

Description

technical field [0001] The embodiments of the present invention relate to the field of electronic technology, and in particular to a high-speed signal equal-length control algorithm, a PCB wiring method, and the PCB. Background technique [0002] With the rapid development of electronic technology, the integration technology of electronic transistors is growing exponentially according to Moore's law. As the frequency of electronic signals is getting faster and faster, the edges of signals are getting steeper, and the wavelength of signals is getting shorter and shorter, resulting in the time control of signal reception and transmission at the picosecond (ps) level, so printed circuit boards ( The distribution parameters of Printed CircuitBoard (PCB) cannot be ignored, and the time difference control of signal transmission and reception is becoming more and more important. [0003] At present, high-speed circuit design and signal integrity analysis are just emerging industri...

AI Technical Summary

Problems solved by technology

[0003] At present, high-speed circuit design and signal integrity analysis are just emerging industries. There are many empirical principles for the reception and transmission of high-speed signals and the delay time control of timing requirements between signals, but the empirical principles are only one-sided. It constrains the equal-length tolerance at the physical level during PCB design. When the signal requirements change, it cannot meet the system's signal transmission time requirements, resulting in timing errors and the system cannot work normally.

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