摘要
文章介绍了符合ITU-TG.755建议的四次群分接器设计方案及其工程实现。分接器采用并行处理方式 ,高速ECL器件与EPLD器件结合 ,将四次群信号(139.264Mb/s)分路成三路三次群信号(44.734Mb/s)。实际使用表明 ,该分接器工作可靠 ,经济成本低。
this paper introduces the design and implementation of a quartic group demultiplexer that uses ITU-TG.755stanˉdard.The demultiplexer employs a parallel processing mode.It is made from ECL and EPLD components.The data stream of quartic group(139.264Mb/s)is decomposed into three pathway data streams of thrice group(44.734Mb/s).The application results showthat the designed demultiplexer has high reliability and lowcost.
基金
江苏省教育厅基础项目(98KJB510001)
