FIELD: radio engineering.
SUBSTANCE: invention relates to radio electronics and can be used in synthesis of frequencies. Proposed frequency synthesiser comprises frequency phase automatic tuning circuit incorporating controlled oscillator, controlled oscillator frequency divider, phase detector, charge pumping circuit, low frequency filter, master oscillator and maser oscillator frequency divider. Proposed synthesiser additionally comprises phase detector, additional charge pumping circuit, additional low frequency filter, logical control circuit, gates and controlled oscillator capacitors.
EFFECT: reduced phase noises in wide tuning range.
2 dwg
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