摘要
在吉比特级EPON的突发式接收模块中,时钟数据恢复是关键技术之一。在对现有几种时钟数据恢复技术进行对比研究后,提出一种基于改进比特门控振荡器的即时锁定技术。它提升了占空比区分容限,抑制了时钟恢复级的数据的抖动,构造出更加适合吉比特级的时钟数据恢复电路。测试结果表明,对于8B10B码和伪随机码,CDR电路均达到预期的指标要求。
In the burst mode receiver of the G bit EPON system, the clock and data recovery circuit is one of the key technologies. After comparing several CDR （Clock and Data Recovery） circuits, a new clock and data circuit based on the modified gated oscillator is proposed. The proposed circuit improves the duty - cycle variation tolerance, rejects the jitter of input data and has a better performance in the G bit EPON system. Tests show that the circuit operates as desired for 8B10B line code and PRBS.
出处
《武汉理工大学学报（信息与管理工程版）》
CAS
2005年第5期93-96,共4页
Journal of Wuhan University of Technology：Information & Management Engineering
基金
湖北省科技攻关计划资助项目(2002AA101A04)
