FIELD: radio engineering.
SUBSTANCE: invention relates to radio engineering and can be used in a frequency synthesiser with a pulsed phase-locked loop frequency. High-speed frequency synthesiser comprises a reference generator, frequency-phase detector, controlled current source, low-pass filter, adder-control signal generator, controlled generator, divider with variable or fractional variable division factor, register of control code word, decoder of control code word.
EFFECT: technical result is faster operation when changing operating frequency.
1 cl, 2 dwg
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|---|---|---|---|
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