公开(公告)号：US20230353155A1

公开(公告)日：2023-11-02

申请号：US17730352

申请日：2022-04-27

Applicant: NVIDIA Corp.

Inventor： Jiwang Lee ,  Jaewon Lee ,  Hsuche Nee ,  Po-Chien Chiang ,  Wen-Hung Lo ,  Michael Ivan Halfen ,  Abhishek Dhir

IPC: H03K19/1776 ,  H03K19/17784 ,  H03K19/17736

CPC classification number: H03K19/1776 ,  H03K19/17784 ,  H03K19/17744 ,  H03K19/1774

Abstract: A multi-rank circuit system includes multiple transmitters each switchably coupled to a first end of a shared input/output (IO) channel and a unified receiver coupled to a second end of the shared IO channel. The unified receiver is coupled to apply a preconfigured analog reference voltage to set a differential output of the unified receiver, and further configured to apply a variable digital code to adjust the differential output according to a particular one of the transmitters that is switched to the shared IO channel.