集成电路与嵌入式系统2025，Vol.25Issue(5)：45-51,7.DOI:10.20193/j.ices2097-4191.2025.0003
基于LVDS的数据传输系统优化
Optimization of data transmission system based on LVDS
宿家豪 1焦新泉 1杨志文 1李少茜 1周江2
作者信息
- 1. 中北大学仪器科学与动态测试教育部重点实验室,太原 030051
- 2. 火装驻北京地区第七军事代表室,北京 100076
- 折叠
摘要
Abstract
With the rapid increase of data volume in todays era,higher requirements are put forward for data transmission technology,especially in terms of transmission speed,stability and reliability.Traditional single channel LVDS data transmission system generally achieve transmission rates of only a few hundred Mb/s when transmitting over long distances,which is insufficient for high-speed data transmission needs.To address this challenge,this paper proposes a comprehensive optimization scheme.In terms of hardware,two groups of four channel LVDS chips are used as the high-speed data interface,enabling eight channel LVDS transmission and thereby im-proving the data transmission rate.However,as the rate increases,the probability of error code generation due to crosstalk and electro-magnetic interference also increases.Therefore,it is necessary to cooperate with the anti-interference ability and long-distance transmis-sion ability of dedicated LVDS data driver and cable equalizer system.In addition,RS encoding and decoding technology is introduced in-to the software logic to achieve error correction within a certain range.With automatic retransmission technology and CRC verification,the reliability of data transmission is improved.After extensive tests,the proposed design can finally achieve 4 000 Mb/s zero error transmission under 80 m twisted pair shielded cable.关键词
LVDS/RS编码/CRC校验/自动重传请求/多通道LVDS传输Key words
LVDS/RS code/CRC check/automatic repeat request/multi-channel LVDS transmission分类
电子信息工程引用本文复制引用
宿家豪,焦新泉,杨志文,李少茜,周江..基于LVDS的数据传输系统优化[J].集成电路与嵌入式系统,2025,25(5):45-51,7.
