一种改进的寄生供电串行通信总线及其收发器  

A New Parasite Powered Serial Bus and Its Transceiver

作　　者：王峻松[1] 朱潇挺[1] 任腾龙[1] 洪志良[1] 

机构地区：[1]复旦大学专用集成电路与系统国家重点实验室,上海201203

出　　处：《微电子学》2007年第6期882-886,共5页Microelectronics

基　　金：ADI公司资助项目

摘　　要：介绍了一种在1-wire基础上改进的寄生供电通信总线,改进系统在基本不增加传输带宽需求的前提下将数据传输速率从143 kbps提升至1 Mbps;增加了少量电路,将寄生供电能力由平均电流5μA提升至大于1 mA。改进系统可以支持实时环境监测和大数据量传输等功能,拓展了寄生供电串行通信技术的应用空间。采用TSMC 0.25μm标准数字CMOS工艺,设计了一个收发器。仿真结果表明,电路性能满足设计要求。A new parasite powered serial bus based on 1-wire was presented. Compared with the convetional 1- wire, performances of the modified bus were greatly improved to satisfy complicated applications. The maximum data rate increased from 143 kbps to 1 Mbps, and the capability of parasite power supply increased from 5 μA to 1 mA. A prototype transceiver was developed, and it was verified with simulation based on TSMC＇s 0. 25 μm logic CMOS technology. The circuit met the design specification, which demonstrated the feasibility of the proposed bus.

关 键 词：串行通信 自适应上拉 寄生供电 收发器 

分 类 号：TN492[电子电信—微电子学与固体电子学]