A wiring structure and method to reduce the far-end cross talk between parallel signal circuits

A technology of far-end crosstalk and signal lines, applied in the reduction of crosstalk/noise/electromagnetic interference (, circuits, printed circuits, etc., can solve the problems of increasing signal distribution capacitance, increasing transmission line impedance, and slowing signal edges, etc. Achieve the effect of improving integrity and reducing far-end crosstalk

Inactive Publication Date: 2007-04-25
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Abstract
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Problems solved by technology

At the same time, the ground wire will also increase the distributed capacitance of the signal, which will increase the impedance of the transmission line and slow down the signal edge.

Method used

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  • A wiring structure and method to reduce the far-end cross talk between parallel signal circuits
  • A wiring structure and method to reduce the far-end cross talk between parallel signal circuits

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Embodiment Construction

[0023] Please refer to FIG. 1, a schematic diagram of a first embodiment of a wiring architecture for reducing far-end crosstalk between parallel signal lines according to the present invention. In this embodiment, two parallel signal lines include an intrusion line 100, a victim line 200, and a delay mode. Group 400, the rising edge delay τ of the transmission signal 300 in the intrusion line 100 γ It is 200ps, and the delay module 400 adopts a serpentine structure.

[0024] First, the victim line 200 is equally divided into two sections, and the delay module 400 is connected between the two sections. The delay module 400 is set so that the delay of the signal transmitted in the victim line 200 through the delay module 400 is equal to the delay of the rising edge of the transmission signal 300 in the intrusion line 100. Since the intrusion line 100 and the victim line 200 are transmitted in parallel outside the delay module 400, the transmission time of the crosstalk signal in ea...

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Abstract

The invention relates to a wiring structure for reducing the remote crosstalk between parallel signal wires and relative method. Wherein, said parallel signal wire comprises a crosstalk wire and a disturbed wire; said two wires are parallel; the disturbed wire has several segments, connected by one time-delay moulds. The invention can reduce remote crosstalk and improve the integrity of signal transmission.

Description

【Technical Field】 [0001] The invention relates to a wiring structure and method for reducing far-end crosstalk between parallel signal lines. 【technical background】 [0002] Crosstalk is the influence of electromagnetic coupling on adjacent transmission lines when a signal is transmitted on a transmission channel. It is manifested as a certain coupling voltage and coupling current injected into the interfered signal. In the field of digital circuit design, the existence of crosstalk is very extensive, and as the signal rate increases and the product size becomes smaller and smaller, the total crosstalk of the digital system also increases sharply. Excessive crosstalk will affect the system. Performance, and even cause false triggering of the circuit, causing the system to fail to work normally. [0003] In view of the above situation, the industry needs to conduct crosstalk analysis and explore methods to solve the crosstalk problem. The industry's solution to crosstalk usually c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02H01L25/00H01L27/00
CPCH05K2201/09236H01L2924/3011H01L23/552H01L23/5222H01L2924/0002H05K1/0216H05K2201/09263H01L2924/00
Inventor 林有旭叶尚苍李传兵
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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