LVDS远程传输中继电路的设计应用  

Design and Application of Trunking Circuit Used in Long-distance LVDS Signal Transmission

作　　者：马将[1] 任勇锋[1] 李圣昆[1] 张时华[1] 

机构地区：[1]中北大学电子测试技术国家重点实验室,太原山西030051

出　　处：《通信技术》2010年第1期26-28,31,共4页Communications Technology

基　　金：国家自然科学基金资助项目--微小型高速运动体的激光主动制导和探测技术研究(批准号:60871041)

摘　　要：为了解决LVDS信号在远程传输过程中(一般大于100 m时)出现的信号衰减、丢数、误码等问题,延长系统间信号传输的距离,提出了一种基于DS92LV18 LVDS串行/解串器的中继电路的设计。该中继电路通过接收LVDS信号,并对其进行解串后再次串化输出,实现对信号的加强,从而延长信号传输的距离,并提高信号传输的可靠性。该设计采用FPGA作为中心逻辑控制模块。实际测试结果表明,该电路能很好的解决信号在远程传输过程中出现的上述问题,且该电路体积小巧,连接方便,具有较强的实用性。Signal attenuation, data loss, code error and so on, would occur when LVDS signal is in long-distance transmission （generally more than 100 meters）. These problems may result in the limit of communication among between the involved systems. In order to solve these problems, the paper proposes a trunking interface circuit based on DS92LV18 LVDS serializer / deserializer. This trunking circuit receives the LVDS signal, carries out serializing and deserializing of the signal, and then implements serializing output of the signal. This could enhance the LVDS signal, thus to extend transmission distance of the signal, and increase the reliability of signal transmission. The design uses FPGA as the central logical control module. Actual test indicates that this proposed trunking interface circuit could solve such problems as signal attenuation, data loss, code error and so on in long-distance signal/transmission. In addition, this trunking circuit is small in size, convenient in connection, thus is of comparatively high practicability.

关 键 词：远程传输 DS92LV1 8串行/解串器 LVDS 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]