PHASE-LOCKED LOOP BASED FREQUENCY GRID SYNTHESISER WITH FRACTIONALITY NOISE COMPENSATION Russian patent published in 2013 - IPC H03L7/00 

Abstract RU 2491713 C1

FIELD: radio engineering, communication.

SUBSTANCE: frequency grid synthesiser has a pulsed frequency-phase detector, a charge pumping current source, a capacitive element, a switching element, a control loop filter, voltage controlled generator, a fractionally variable ratio divider (FVRD), a division ratio control circuit in the FVRD, a fractionality compensation current source, the output of which is connected to the output of the charge pumping current source.

EFFECT: eliminating residual pulsations of fractionality noise in the control signal of a voltage-controlled generator.

7 dwg

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Authors

Zajtsev Andrej Alekseevich

Dates

2013-08-27Published

2012-10-01Filed