US 11,705,930 B2
Measurement and calibration of mismatch in an isolation channel
Carlos J. Briseno-Vidrios, Austin, TX (US)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on Sep. 30, 2020, as Appl. No. 17/38,211.
Prior Publication US 2022/0103196 A1, Mar. 31, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 1/10 (2006.01); H04B 1/12 (2006.01); H04B 1/16 (2006.01); H03F 3/45 (2006.01); H03G 3/30 (2006.01); H03K 19/0175 (2006.01)
CPC H04B 1/1027 (2013.01) [H03F 3/45475 (2013.01); H03G 3/3089 (2013.01); H03K 19/017509 (2013.01); H04B 1/123 (2013.01); H04B 1/1615 (2013.01); H03G 2201/103 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for calibrating an isolator product, the method comprising:
receiving a calibration signal on a differential pair of nodes of a receiver signal path of a first integrated circuit die of the isolator product;
generating a diagnostic signal by providing an analog signal based on a full-wave rectified version of the calibration signal on the differential pair of nodes and converting the analog signal to a digital signal, the diagnostic signal having a level corresponding to an average amplitude of the calibration signal on the differential pair of nodes; and
configuring a programmable receiver signal path based on the diagnostic signal.