FREQUENCY SYNTHESISER Russian patent published in 2012 - IPC H03L7/16 H03L7/06 

FIELD: electricity.

SUBSTANCE: device comprises two generators of a reference frequency signal, a source of supply to a generator of a reference frequency signal, a frequency divider with a fixed coefficient of division, a frequency-phase detector, a low pass filter, a generator controlled by voltage, a fractional frequency divider with an alternating division coefficient, a microcontroller, two electronic two-way switches.

EFFECT: lower level of indirect spectral components of a synthesised signal.

1 dwg