Comparing phase detectors in analog Phase-Locked Loops

The Phase-Locked Loops, conceived in the 1930’s by Henri de Bellescize, and used in a large scale on TV sets and integrated services digital telecommunication networks are nowadays increasing their relevance, being present in the time-basis generation and detection either in integrated circuits or i...

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Bibliographic Details
Published in:The European physical journal. ST, Special topics Special topics, 2021-11, Vol.230 (18-20), p.3609-3614
Main Authors: Sánchez, Rancés Sánchez, Piqueira, José Roberto Castilho, Bueno, Átila Madureira
Format: Article
Language:English
Subjects:
Atomic
Bifurcation
Classical and Continuum Physics
Condensed Matter Physics
Electric power distribution
Integrated circuits
Materials Science
Mathematical Modelling
Measurement Science and Instrumentation
Molecular
Nonlinear Dynamics
Optical and Plasma Physics
Phase detectors
Phase error
Phase locked loops
Physics
Physics and Astronomy
Regular Article
Smart grid
Synchronism
Synchronization and Control of Mechanisms Driven by Power Supply
Trigonometric functions
Vibration
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Summary:The Phase-Locked Loops, conceived in the 1930’s by Henri de Bellescize, and used in a large scale on TV sets and integrated services digital telecommunication networks are nowadays increasing their relevance, being present in the time-basis generation and detection either in integrated circuits or in smart-grids power distribution systems. Among the Phase-Locked Loop architecture components is the Phase Detector. The phase detection function is a measure of phase/frequency errors in the Phase-Locked Loop, with analog, hybrid and digital implementations. In most of the classical literature the phase detection function is implemented by a signal multiplier device that can be approximated by a sine function from the phase error. Additional simplifications made on the phase detection function approximates the Phase-Locked Loop to a Düffing system. The phase detection function usually generates oscillations, such as the double-frequency jitter, which is a sinusoidal signal with the double of the synchronization frequency. Nowadays, software implementation allows a considerable flexibility to the phase detection function. Therefore, the phase detection requires accurate modeling to guarantee precision to the obtained clock signals. This work presents a performance comparison between the multiplier, the sine and the Düffing detectors.
ISSN:1951-6355
1951-6401
DOI:10.1140/epjs/s11734-021-00245-3