公开(公告)号：US20220103145A1

公开(公告)日：2022-03-31

申请号：US17038223

申请日：2020-09-30

Applicant: Silicon Laboratories Inc.

Inventor： Carlos J. Briseno-Vidrios ,  Gabor Marek

IPC: H03G3/30 ,  H03F3/45 ,  H03K19/0175

Abstract: A method for calibrating a receiver of an isolator product includes adjusting a peaking frequency of a receiver signal path of a first integrated circuit die of the isolator product and a gain of the receiver signal path based on a predetermined peaking frequency, a predetermined gain, a first level of a diagnostic signal during a first interval, and a second level of the diagnostic signal during a second interval. The first interval and the second interval are non-overlapping intervals. The method may include receiving a calibration signal on a differential pair of nodes of the receiver signal path of the first integrated circuit die. The method may include generating a diagnostic signal corresponding to an average amplitude of a received version of the calibration signal.

公开(公告)号：US20220115941A1

公开(公告)日：2022-04-14

申请号：US17066251

申请日：2020-10-08

Applicant: Silicon Laboratories Inc.

Inventor： Michael R. May ,  Fernando Naim Lavalle Aviles ,  Carlos Jesus Briseno-Vidrios ,  Patrick De Bakker ,  Gabor Marek ,  Charles Guo Lin ,  Peter Onody ,  Tamás Marozsák ,  András V. Horváth

IPC: H02M1/08 ,  H03K17/691 ,  H03K17/18

Abstract: An isolated gate driver has a first portion in a first voltage domain and a second portion in a second voltage domain. The first and second portions are coupled by an isolation communication channel. The isolated gate driver transmits across the isolation communication channel a serial word containing first drive strength information and simultaneously transmits gate information with the serial word across the isolation communication channel. The gate information indicates a state of a gate signal for a transistor coupled to the second portion of the isolated gate driver. A demodulator circuit demodulates a signal containing the gate information and the drive strength information transmitted across the isolation communication channel in the serial word. A gate signal output circuit coupled to the demodulator circuit supplies the gate signal based on the gate information with a drive strength of the gate signal being based on the drive strength information.