Amplitude-controlled oscillator circuit and method for operating an amplitude-controlled oscillator circuit

摘要

An amplitude-controlled oscillator circuit includes an oscillator for providing a frequency signal having a controllable signal amplitude, a divider circuit for a frequency division of the frequency signal, a minimum amplitude of the frequency signal being associated to the divider circuit and the divider circuit being formed to output a divided frequency signal having a predetermined quality when the signal amplitude is greater than or equal to the minimum amplitude. In addition, the amplitude-controlled oscillator circuit includes a controller for controlling the signal amplitude of the frequency signal, the controller being formed to control the signal amplitude such that it is greater than or equal to the minimum amplitude. It is possible by means of such an amplitude-controlled oscillator circuit to ensure in a simple and low-cost manner that the divided frequency signal has a predetermined quality for example within a wide temperature range.