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1. 发明授权

US06937054B2 Programmable peaking receiver and method 有权
标题翻译：可编程峰值接收机和方法
公开(公告)号：US06937054B2
公开(公告)日：2005-08-30
申请号：US10250043
申请日：2003-05-30
申请人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , William F. Washburn , Huihao H. Xu , Steven J. Zier
发明人： Louis L. Hsu , Karl D. Selander , Michael A. Sorna , William F. Washburn , Huihao H. Xu , Steven J. Zier
IPC分类号： H04L25/02 , H03K19/003
CPC分类号： H04L25/0272 , H04L25/0278 , H04L25/0294 , H04L25/03885
摘要： Methods and structures are disclosed herein for programmably adjusting a peaking function of a differential signal receiver. The disclosed method includes inputting a pair of differential signals to a pair of input transistors coupled to conduct currents differentially between a pair of load impedances and a pair of tail transistors. The impedance of an adjustable shunt impedance element between the tail transistors of the receiver is varied by programming signal input, such that higher current is conducted over a peaking range of frequencies. In a disclosed structural embodiment, an integrated circuit is provided having a programmable peaking receiver. The programmable peaking receiver includes a pair of input transistors coupled to conduct differentially according to a pair of differential inputs applied to the pair of input transistors. Each of the input transistors produces an output in accordance with the differential input applied thereto. The programmable peaking receiver also includes a pair of tail transistors, coupled to draw current from the input transistors, and a programmably adjustable impedance element coupled between current-conducting nodes of the tail transistors. The impedance of the programmably adjustable impedance element is thereby adjustable in response to programming signal input to adjust a peaking function of the programmable peaking receiver.
摘要翻译：本文公开了可编程地调节差分信号接收器的峰值功能的方法和结构。所公开的方法包括将一对差分信号输入到耦合以在一对负载阻抗和一对尾部晶体管之间差分地传导电流的一对输入晶体管。接收器的尾部晶体管之间的可调节分流阻抗元件的阻抗由编程信号输入变化，使得在峰值范围的频率上进行更高的电流。在公开的结构实施例中，提供了具有可编程峰值接收器的集成电路。可编程峰值接收器包括一对输入晶体管，其被耦合以根据施加到该对输入晶体管的一对差分输入进行差分导通。每个输入晶体管根据施加到其上的差分输入产生输出。可编程峰值接收器还包括耦合以从输入晶体管抽取电流的一对尾部晶体管，以及耦合在尾部晶体管的导电节点之间的可编程可调阻抗元件。可编程可调阻抗元件的阻抗因此可响应于编程信号输入而调节，以调节可编程峰值接收器的峰值功能。

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