HIGH-ORDER PHASE TRACKING LOOP WITH SEGMENTED PROPORTIONAL AND INTEGRAL CONTROLS

HIGH-ORDER PHASE TRACKING LOOP WITH SEGMENTED PROPORTIONAL AND INTEGRAL CONTROLS

A clock recovery circuit (900) is described herein comprising: a plurality of clock inputs (105, 185, 187) including a reference clock (105) and at least one other clock input (185, 187); a phase rotator (115) and an accumulator (165) configured to perform frequency tracking providing integral contr...

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Bibliographische Detailangaben
Hauptverfasser: JAKPBER, Lukas, ABDO, Ahmad, PARVIZI, Mahdi, BEN-HAMIDA, Naim, AOUINI, Sadok, CREASY, Timothy, James
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR STABILISATIONOF GENERATORS OF ELECTRONIC OSCILLATIONS OR PULSES
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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Beschreibung
Zusammenfassung:A clock recovery circuit (900) is described herein comprising: a plurality of clock inputs (105, 185, 187) including a reference clock (105) and at least one other clock input (185, 187); a phase rotator (115) and an accumulator (165) configured to perform frequency tracking providing integral control of an output signal (180) that is a synchronized clock signal based on the reference clock (105), wherein the integral control is based on the at least one other clock input (185, 187), and a digital fine delay element (350) configured to perform phase tracking providing the proportional control of an output signal (180), wherein the proportional control is based on the at least one other clock input (185, 187).