公开(公告)号：US20240333318A1

公开(公告)日：2024-10-03

申请号：US18612222

申请日：2024-03-21

Applicant: STMicroelectronics International N.V.

Inventor： Nunzio Spina ,  Giuseppe Palmisano

IPC: H04B1/00

CPC classification number: H04B1/006 ,  H04B1/0078

Abstract: A circuit for transmitting/receiving signals through a galvanic isolation comprises an antenna transmitting/receiving radiofrequency signals modulated over a radiofrequency carrier, a transmitter receiving an input data signal, and a receiver delivering an output data signal. First and second capacitive circuitry are arranged between the antenna and the receiver and the transmitter, respectively. First and second switching circuitry couple the first and second capacitive circuitry to the antenna in an inductive-capacitive network, alternately: in a transmission mode, the first switching circuitry couples the first capacitive circuitry to ground with the receiver disabled, and the second switching circuitry decouples the second capacitive circuitry from the inductive-capacitive network with the transmitter enabled, and in a reception mode, the first switching circuitry decouples the first capacitive circuitry from ground, with the receiver enabled, and the second switching circuitry couples the second capacitive circuitry to the inductive-capacitive network with the transmitter disabled.