Patent ID: 7573347

Claim:
A digitally controlled oscillator device, comprising: a programming input configured to receive a first multibit data word for programming an oscillating frequency of the oscillator device, wherein the programming occurs in discrete amounts dictated by a same predetermined frequency step size for each incremental adjustment in the first multibit data word; an oscillator core comprising a first programmable capacitive element configured to influence a frequency of the oscillator device, the first capacitive element coupled to the programming input for receiving the first multi bit data word; a deattenuation amplifier coupled to the oscillator core; a selection input configured to receive a mode selection signal; and a selection unit coupled between the selection input and a mode input of the oscillator core, wherein the selection unit is configured to select a mode from a plurality of modes depending on the mode selection signal, and wherein each mode of the plurality of modes dictates a size of the predetermined frequency step size of the oscillator core.