LC CONTROLLABLE OSCILLATOR, A QUADRATURE OSCILLATOR AND A COMMUNICATION ARRANGEMENT

摘要

A LC controllable oscillator (LCCO) according to the invention comprises a voltage-controlled oscillator VCO (102) and a first voltage controlled current source VCCS (101) of a first type for supplying a current to the VCO. The VCO is realized with a first pair of VCCS (301') of the first type coupled with a second pair of VCCS (302') of a second type and a LC resonator. The VCO generates a periodical oscillation frequency that is controllable by a control signal (V). The LCCO further comprises a replica scaled bias module RSBM (103) supplied from the external voltage source. The RSBM (103) is conceived to generate a control signal (BIAS CONTROL) for controlling the supplied current delivered by the first VCCS (101) to the VCO.