High-speed internet terminal matching design method

Abstract

The invention particularly relates to a high-speed internet terminal matching design method. According to the high-speed internet terminal matching design method, the final receiving end of a high-speed differential signal line is connected with a common-mode choking coil and a phase compensation circuit; the high-speed differential signal line is first connected to the common-mode choking coil for inhibiting common-mode voltage, so that the common-mode voltage of the high-speed differential signal line is 0; then the high-speed differential signal line is connected to the phase compensation circuit for realizing phase compensation, so that the signal phases of the high-speed differential signal line are matched; and finally the high-speed differential signal line is connected to the final receiving end. According to the high-speed internet terminal matching design method, the common-mode choking coil is adopted for inhibiting the common-mode voltage, so that the common-mode voltage of the high-speed differential signal line is 0; the phase compensation circuit is adopted for realizing phase compensation, so that the signal phases of the high-speed differential signal line are matched; and therefore, unnecessary isometric windings are reduced, wire arrangement space is saved, the winding time of design personnel is greatly shortened, the product design and development time is shortened, and the research and development cycle is shortened.

Description

technical field [0001] The invention relates to the technical field of research and development of server motherboards, in particular to a design method for high-speed interconnection terminal matching. Background technique [0002] Differential transmission is a signal transmission technology that uses a numerical value to represent the difference between two physical quantities. In layman's terms, the driving end sends two signals of equal value and opposite phase, and the signal receiving end compares the difference between the two voltages to determine whether the sending end is sending a logic 0 or a logic 1. [0003] Different from the traditional practice of one signal line and one ground line, differential transmission transmits signals on both differential signal lines. The signals on these two differential signal lines have equal amplitudes and opposite phases. The signals transmitted on these two lines are differential signals. The farther the signal source and ...

AI Technical Summary

Problems solved by technology

Layout designers often make trade-offs between routing space and equal-length routing, which will consume a lot of time

[0009] Therefore, in order to meet customer needs, there are great challenges for R&D personnel in terms of design quality and R&D cycle

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