US 12,395,177 B2
Reducing non-linearities of a phase rotator
Jerry Yee-Tung Lam, Stittsville (CA); Sadok Aouini, Gatineau (CA); and Naim Ben-Hamida, Nepean (CA)
Assigned to Ciena Corporation, Hanover, MD (US)
Filed by Ciena Corporation, Hanover, MD (US)
Filed on Jun. 3, 2024, as Appl. No. 18/732,176.
Application 18/732,176 is a continuation of application No. 17/944,364, filed on Sep. 14, 2022, granted, now 12,034,448.
Application 17/944,364 is a continuation of application No. 17/318,118, filed on May 12, 2021, granted, now 11,463,093, issued on Oct. 4, 2022.
Prior Publication US 2024/0322829 A1, Sep. 26, 2024
Int. Cl. H03L 7/081 (2006.01); H03L 7/099 (2006.01); H03L 7/197 (2006.01); H04L 7/00 (2006.01); H04L 7/033 (2006.01)
CPC H03L 7/0814 (2013.01) [H03L 7/0994 (2013.01); H03L 7/1976 (2013.01); H04L 7/0037 (2013.01); H04L 7/033 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A transceiver comprising:
a first transmit (Tx) component configured to connect to a second receive (Rx) component in a second transceiver;
a first Rx component configured to connect to a second Tx component in the second transceiver;
a single Phase-Locked Loop (PLL) circuit connected to both the first Tx component and the first Rx component; and
a control circuit configured to continuously calibrate a first Look-Up Table (LUT) configured to feed operating codes to a first phase rotator connected to an output of the single PLL circuit and to one of the first Tx component and the first Rx component.