公开(公告)号：US11824534B2

公开(公告)日：2023-11-21

申请号：US17455195

申请日：2021-11-16

Applicant: XILINX, INC.

Inventor： Nakul Narang ,  Siok Wei Lim ,  Luhui Chen ,  Yipeng Wang ,  Kee Hian Tan

IPC: H04L25/02 ,  H03K19/17736 ,  G06F13/10 ,  H03K19/17788 ,  H04J3/04

CPC classification number: H03K19/17744 ,  G06F13/102 ,  H03K19/17788 ,  H04J3/047 ,  H04L25/0272

Abstract: A transmit driver architecture with a test mode (e.g., a JTAG configuration mode), extended equalization range, and/or multiple power supply domains. One example transmit driver circuit generally includes one or more driver unit cells having a differential input node pair configured to receive an input data signal and having a differential output node pair configured to output an output data signal; a plurality of power switches coupled between the differential output node pair and one or more power supply rails; a first set of one or more drivers coupled between a first test node of a differential test data path and a first output node of the differential output node pair; and a second set of one or more drivers coupled between a second test node of the differential test data path and a second output node of the differential output node pair.