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Circuit board reducing signal crosstalk

A technology of signal crosstalk and circuit boards, applied in printed circuit components, crosstalk reduction, line transmission components, etc., can solve problems such as increased crosstalk, system malfunction, and affecting system performance, and achieve the effect of reducing crosstalk

Inactive Publication Date: 2014-06-04
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In digital circuits, the existence of crosstalk is very extensive. With the increase of signal frequency and the smaller and smaller product dimensions, the total crosstalk of digital systems also increases sharply. Excessive crosstalk will affect the performance of the system and even cause False triggering of the circuit causes the system to fail to work normally

Method used

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  • Circuit board reducing signal crosstalk
  • Circuit board reducing signal crosstalk
  • Circuit board reducing signal crosstalk

Examples

Experimental program
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Embodiment Construction

[0013] see figure 1 , in a preferred embodiment of the present invention, several pairs of differential pairs are arranged in parallel on a circuit board 10. In one embodiment, these differential pairs include a first differential pair 11, a second differential pair 12, a first differential pair Three differential pairs 13 and a fourth differential pair 14 . The second differential pair 12 is arranged on the right side of the first differential pair 11 , the third differential pair 13 is arranged on the right side of the second differential pair 12 , and the fourth differential pair 14 is arranged on the right side of the third differential pair 13 .

[0014] The first differential pair 11 includes a first positive differential signal line 11P and a first negative differential signal line 11N; the second differential pair 12 includes a second positive differential signal line 12P and a second negative differential signal line 12N; The three differential pairs 13 include a thi...

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Abstract

The invention provides a circuit board reducing signal crosstalk. At least four signal lines are parallelly arranged on the circuit board. In at least four signal lines, the polarities of signals transmitted by two adjacent signal lines and other two adjacent signal lines are opposite.

Description

technical field [0001] The invention relates to a circuit board, especially a circuit board capable of reducing signal crosstalk. Background technique [0002] When a high-speed signal is transmitted on a circuit board, the influence of electromagnetic coupling on adjacent transmission lines is manifested in the injection of a certain coupling voltage on the disturbed signal, resulting in signal crosstalk. In digital circuits, the existence of crosstalk is very extensive. With the increase of signal frequency and the smaller and smaller product dimensions, the total crosstalk of digital systems also increases sharply. Excessive crosstalk will affect the performance of the system and even cause The false triggering of the circuit causes the system to fail to work normally. Contents of the invention [0003] In view of the above, it is necessary to provide a circuit board capable of reducing signal crosstalk. [0004] A circuit board for reducing signal crosstalk, on which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02
CPCH04B3/32
Inventor 林有旭
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD