自适应动态延时调整的SERDES技术在宽带数据传输中的应用

Application of Adaptive Dynamic Delay Adjustment SERDES Technology in Wideband Link Data Transmission

针对宽带高速数传需求,提出了一种基于SERDES技术实现高速传输的解决方法。通过对串行器/解串器(SERDES)原理进行研究,提出了一种利用Idelay原语实现SERDES延时的自适应动态调整方法,可动态调整延时2.496 ns,解决了SERDES传输时固有的相位漂移问题。实验结果表明,基于SERDES技术,可实现60个通路、每路850 Mb/s的传输速度,满足了项目需求,且易于移植,对于高速、多路数传系统设计有参考意义。

According to the requirement of airborne equipment in wideband communication data link, the serial SERDES transmission technology is researched and an implementation of SERDES is proposed. Based on the Idelay primitives, an adaptive dynamic delay adjustment method is advanced, which eliminates 2. 496 ns time skew between several SERDES lanes within 32 ns. The experiment result shows that the method can achieve a data transmission speed of 850 Mb/s/Lane of 60 lanes,which satisfies the real pro-ject requirement and is transplantable. The research in this paper provides a good example for design of oth-er high-speed multilane data transmission systems.