FREQUENCY SYNTHESIZER Russian patent published in 1998 - IPC

FIELD: radio engineering; radio receivers and transmitters. SUBSTANCE: frequency synthesizer that has series-connected multiplexor, accumulator, storage unit, digital-to-analog converter, and low-frequency filter is provided, in addition, with OR gate whose output is connected to clock input of accumulator; first and second information inputs of multiplexor function, respectively, as frequency-setting input and synthesizer complementary code setting input; multiplexor control input and first input of OR gate are connected to carry output of accumulator; second input of OR gate functions as reference-signal input of frequency synthesizer. EFFECT: simplified design and improved accuracy of output-signal frequency.