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计算机工程 ›› 2006, Vol. 32 ›› Issue (4): 269-271.

• 开发研究与设计技术 • 上一篇    下一篇

USB 通信中数字锁相环的设计实现

聂新义,任敏华   

  1. 华东计算技术研究所,上海 200233
  • 出版日期:2006-02-20 发布日期:2006-02-20

Design and Implementation of DPLL in USB Communication

NIE Xinyi, REN Minhua   

  1. East China Institute of Computer Technology, Shanghai 200233
  • Online:2006-02-20 Published:2006-02-20

摘要: 介绍了在USB 数据通信中,串行接口引擎数据采样功能模块的设计实现。说明了数字锁相环对12Mbit/s 数据流进行采样的工作原理和相位偏移、频率偏移消除方法。还说明了该数字锁相环的效率和出错概率。

关键词: USB;串行接口引擎;数字锁相环

Abstract: The paper introduces the design and implementation of data sampling module of serial interface engine (SIE) in USB communication. The principle of digital phase locked logic (DPLL) working on sampling 12Mbit/s data stream and the method of eliminating phase offset and frequency offset are explained in detail. Finally, the efficiency and error probability are demonstrated

Key words: USB; Serial interface engine (SIE); Digital phase locked logic (DPLL)