FIELD: physics.
SUBSTANCE: phase-locked loop can be used to generate an oscillator signal for a selected frequency channel. Different settings of the phase-locked loop can be used for units in the phase-locked loop for different frequency channels. Different settings of the phase-locked loop can exist for different ranges of the phase-locked loop bandwidth, for different current values of the charge pump, for different frequency equations corresponding to different sets of high and low divider coefficients, for different frequency division systems corresponding to different prescaler coefficients and/or integral divider coefficients, for adjusting the signal amplitude in the upper or lower part for the superheterodyne receiver or transmitter, and/or for different supply voltages for one or more units of the circuit, such as an oscillator. The suitable set of settings of the phase-locked loop can be selected for each frequency channel.
EFFECT: reduced negative effect of spurious peaks, and improved operating characteristics for the frequency channel.
26 cl, 11 dwg
