Line structure of high-frequency transmission cable assembly

Abstract

Provided is a line structure of a high-frequency transmission cable assembly. The cable assembly includes a set of flat cables and a PCB. An outer module which presses and integrates the flat cables and the PCB is press-formed at the line joint of the flat cables and the PCB. The line structure includes an inserting end which connects the front end of the flat cables and the rear end of the PCB and forms inserting connection at the front end of the PCB. The line structure is characterized in that a row of pins communicated with the corresponding wires of the flat cables through the internal circuit of the PCB and distributed side by side is arranged on at least one side of the inserting end, two sets of five pairs of sideband line positions on the row of pins are designed as high-frequency line position pairs, and the grounding in the middle is designed as an independent grounding line position. The line structure has the advantages of simple structure, easy use, light and thin interface, optimized and wide-range electrical circuit design, and applicability to more occasions.

Description

technical field [0001] The invention relates to a line structure of a high-speed frequency transmission cable assembly, especially a line structure of an unshielded anti-interference data cable assembly, which is mainly suitable for the transmission of information in systems such as data centers, cloud computing, and data storage, and belongs to communication technology field. Background technique [0002] The latest structure of the interface of the existing SAS cable assembly - SlimLine SAS 4.0 interface interface, mainly has the following two problems: first, the positioning of the PCB in the mold cavity is not accurate when the assembly is formed; and the singleness of the signal transmission interface is relatively large. Strong, poor compatibility; for example, in the traditional PCB circuit board design, there are 5 pairs of sidebands (sideband) lines, which are low-frequency lines; if it is designed as a high-speed signal transmission line, it must be compatible with...

AI Technical Summary

Problems solved by technology

[0002] The latest structure of the interface of the existing SAS cable assembly - SlimLine SAS 4.0 interface interface, mainly has the following two problems: first, the positioning of the PCB in the mold cavity is not accurate when the assembly is formed; and the singleness of the signal transmission interface is relatively large. Strong, poor compatibility; for example, in the traditional PCB circuit board design, there are 5 pairs of sidebands (sideband) lines, which are low-frequency lines; if it is designed as a high-speed signal transmission line, it must be compatible with sidebands Function requirements, so that the relevant electrical functions of this group of high-speed signal pairs need to be used independently; in the PCB circuit board, the middle ground design of this group of lines must be independent, and cannot be connected with the entire PCB circuit circuit. Therefore, for The cost of the PCB circuit board will increase, and the related quality requirements will be higher

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