Patent ID: 7081583

Claim:
A digitally controllable oscillator, comprising: an oscillation generator implemented to generate an oscillation having a frequency settable via an analog input signal into the oscillation generator; and an oscillator control for generating the analog input signal, wherein the oscillator control comprises: a first digital/analog converter for providing a first digital/analog converter output signal in response to a first digital input signal; a second digital/analog converter for providing a second digital/analog converter output signal in response to a second digital input signal; a combiner for combining the first and the second digital/analog converter output signals in order to obtain the analog input signal for the oscillation generator, wherein the second digital/analog converter is implemented in order to provide, in response to a digital increment in the second digital input signal, a difference in the second digital/analog converter output signal which is smaller than a difference in the first digital/analog converter output signal, when the first digital/analog converter is pulsed with the digital increment in the first digital input signal, wherein the first digital/analog converter and/or the second digital/analog converter are implemented in order to provide, in response to a digital increment, a difference in the first or the second output signal, respectively, depending on a supply quantity for the respective digital/analog converter, and wherein the supply quantity for the second digital/analog converter is different from a supply quantity for the first digital/analog converter, and a third digital/analog converter connected to the second digital/analog converter so that it provides the supply quantity for the second digital/analog converter, wherein the supply quantity for the second digital/analog converter is settable via a digital input signal into the third digital/analog converter.