Frequency and Phase Difference Control Using Fractional- N PLL Synthesizers by Composition of Control Data

This paper proposes novel frequency and phase difference control of output signals in multiple fractional- N PLL (F-PLL) synthesizers sharing a reference signal. In the proposed F-PLL synthesizers, frequency control and phase difference control can be performed independently through cyclic shift and...

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Bibliographic Details
Published in:IEEE transactions on microwave theory and techniques 2007-12, Vol.55 (12), p.2832-2838
Main Authors: Tajima, K., Hayashi, R., Isota, Y.
Format: Article
Language:English
Subjects:
Applied sciences
Circuit properties
Circuits of signal characteristics conditioning (including delay circuits)
Composition
cyclic shift
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Energy consumption
Exact sciences and technology
fractional- N frequency synthesizers
Frequency conversion
Frequency synthesizers
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Oscillators, resonators, synthetizers
Phase control
Phase locked loops
Phase shifters
phase-locked loops (PLLs)
RF signals
Shape control
Signal convertors
Signal generators
Voltage-controlled oscillators
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Description
Summary:This paper proposes novel frequency and phase difference control of output signals in multiple fractional- N PLL (F-PLL) synthesizers sharing a reference signal. In the proposed F-PLL synthesizers, frequency control and phase difference control can be performed independently through cyclic shift and composition of control data of frequency dividers. The proposed synthesizers are demonstrated in the L -band, realizing highly accurate output frequency and phase difference control. The measured phase difference error from a designed value is plusmn2deg or less.
ISSN:0018-9480
1557-9670
DOI:10.1109/TMTT.2007.909149