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

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3 Author(s)
Tajima, K. ; Mitsubishi Electr. Corp., Kamakura ; Hayashi, R. ; Isota, Y.

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.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:55 ,  Issue: 12 )