公开(公告)号：US20230058759A1

公开(公告)日：2023-02-23

申请号：US17406164

申请日：2021-08-19

Applicant: Synaptics Incorporated

Inventor： Yoshihiko Hori ,  Takefumi Seno ,  Takashi Tamura ,  Kazuhiko Kanda

IPC: H04L25/02 ,  H04B1/16 ,  H04B1/18

Abstract: An integrated circuit includes a plurality of signal inputs, a receiver, calibration circuitry, and input switch circuitry. The receiver includes differential input terminals. The calibration circuitry is configured to calibrate an input offset between the differential input terminals of the receiver in response to the integrated circuit being placed in a calibration mode. The input switch circuitry is configured to switch electrical connections between the plurality of signal inputs and the differential input terminals of the receiver in response to the integrated circuit being placed in a mode different from the calibration mode. The input switch circuitry is further configured to electrically disconnect the plurality of signal inputs from the differential input terminals of the receiver in response to the integrated circuit being placed in the calibration mode.

公开(公告)号：US11646915B2

公开(公告)日：2023-05-09

申请号：US17406164

申请日：2021-08-19

Applicant: Synaptics Incorporated

Inventor： Yoshihiko Hori ,  Takefumi Seno ,  Takashi Tamura ,  Kazuhiko Kanda

IPC: H04L25/02 ,  H04B1/18 ,  H04B1/16

CPC classification number: H04L25/0276 ,  H04B1/1607 ,  H04B1/18

Abstract: An integrated circuit includes a plurality of signal inputs, a receiver, calibration circuitry, and input switch circuitry. The receiver includes differential input terminals. The calibration circuitry is configured to calibrate an input offset between the differential input terminals of the receiver in response to the integrated circuit being placed in a calibration mode. The input switch circuitry is configured to switch electrical connections between the plurality of signal inputs and the differential input terminals of the receiver in response to the integrated circuit being placed in a mode different from the calibration mode. The input switch circuitry is further configured to electrically disconnect the plurality of signal inputs from the differential input terminals of the receiver in response to the integrated circuit being placed in the calibration mode.