Phase lock loop for radio frequency transmitting and receiving device, has oscillator providing clock signal whose frequency is controlled by control obtained from detector and by frequency range selection control from control module

摘要

The loop has a phase detector (31) and a control module (36) generating frequency range selection signal based on a control. A voltage controlled oscillator (VCO) (34) provides an output clock signal whose frequency is controlled by a control obtained from the detector and by a frequency range selection control obtained from the control module, where the frequency is comprised in a frequency range controlled by the selection signal.