公开(公告)号：US10003336B1

公开(公告)日：2018-06-19

申请号：US15458678

申请日：2017-03-14

Applicant: Xilinx, Inc.

Inventor： Xiaobao Wang ,  VSS Prasad Babu Akurathi ,  Sasi Rama S. Lanka

IPC: H03K19/017 ,  H03K19/00 ,  H03K19/0175 ,  H03K19/177

CPC classification number: H03K19/0005 ,  H03K19/017509 ,  H03K19/17724 ,  H03K19/17744 ,  H03K19/1776

Abstract: A pull-up leg of disclosed circuitry includes a pull-up pre-driver and a pull-up driver coupled to the pull-up pre-driver. A pull-down leg includes a pull-down pre-driver and a pull-down driver coupled to the pull-down pre-driver. An input/output pad is coupled between the pull-up driver and pull-down driver. A driver-and-termination control circuit is coupled to receive a tristate control signal, a termination control signal, and an input data signal. The driver-and-termination control circuit selects a drive mode, tristate mode, or termination mode in response to the tristate control signal and the termination control signal. The driver-and-termination control circuit drives a first data signal to the pull-up driver and drives a second data signal to the pull-down driver. The first and second data signals have equal logic states in the drive mode and have opposite logic states in the tristate and termination modes.

公开(公告)号：US09054645B1

公开(公告)日：2015-06-09

申请号：US14081832

申请日：2013-11-15

Applicant: Xilinx, Inc.

Inventor： Xiaobao Wang ,  Arvind R. Bomdica ,  Vipul D. Badoni

IPC: H03G3/30 ,  H03K19/173 ,  H03F1/02 ,  H03F3/45

CPC classification number: H03F1/0261 ,  H03F3/45197 ,  H03F3/45475 ,  H03F3/45744 ,  H03F2203/45488 ,  H03F2203/45492

Abstract: A programmable receiver implemented in an integrated circuit device is described. The programmable receiver comprises a pre-amplifier circuit coupled to receive an input signal, the pre-amplifier circuit having a programmable current source; and an amplifier circuit coupled to receive an output of the pre-amplifier circuit; wherein the programmable current source is coupled to receive a control signal to enable the receiver to be switched between a high performance mode and a low performance mode. A method of implementing a programmable receiver in an integrated circuit is also described.

Abstract translation: 描述了在集成电路器件中实现的可编程接收器。 所述可编程接收器包括耦合以接收输入信号的前置放大器电路，所述前置放大器电路具有可编程电流源; 以及放大器电路，其耦合以接收所述前置放大器电路的输出; 其中所述可编程电流源被耦合以接收控制信号，以使所述接收器能够在高性能模式和低性能模式之间切换。 还描述了在集成电路中实现可编程接收器的方法。