2.5Gb/s限幅放大器设计  

2.5Gb/s Limiting Amplifier Design

作　　者：陈朝阳[1] 傅生猛[1] 

机构地区：[1]华中理工大学图象识别与人工智能研究所和图象信息处理与智能控制教育部重点实验室,湖北武汉430074

出　　处：《微电子学与计算机》2004年第4期101-104,共4页Microelectronics & Computer

基　　金：国家自然科学基金项目(90207020)

摘　　要：文章采用TSMC0.35滋mSiGe工艺实现了数据率达到2.5Gb/s的光纤通道限幅放大器。限幅放大器信号通道利用多级放大方式,降低了输出信号上升/下降时间,减小了级间驱动能力不匹配对信号完整性的影响;通过负反馈环路消除了信号通道上的偏移电压,采用独特的迟滞技术,使检测电路的迟滞对外接电阻变化不敏感。仿真结果证明设计方法是有效的。This paper illustrates a method to implement the fiber channel limiting amplifier of data rate up to 2.5Gb/s based on TSMC 0.35?滋mSiGe processes. The signal path is implemented by cascade of several gain stage. which shortens raising / falling time, and solves the problem of signal integrate produced by mismatch of inter-stages drive capability. The offset voltage is eliminated by negative feedback loop. A novel hysteresis technology is proposed,which make the hysteresis change very small with external resistance. The simulation results show that these methods are effective.

关 键 词：限幅放大器 信号通道 迟滞 眼图 

分 类 号：TN432[电子电信—微电子学与固体电子学]