Patent ID: 7068112
Filing Date: 2006-06-27
Classification: H03L

Abstract:
1. A circuit arrangement for phase control, comprising: a phase locked loop configured to produce a controlled frequency, the phase locked loop comprising an actuating input and a voltage controlled oscillator portion provided at a control loop output of the phase locked loop at which the controlled frequency is provided; a frequency meter connected to the control loop output of the phase locked loop and configured to measure the controlled frequency; and a computation unit configured to determine a gradient associated with the voltage controlled oscillator portion of the phase locked loop based on the measured frequency, and generate a correction value based on the gradient, wherein the computation unit is connected to the actuating input and supplies the correction value thereto, the computation unit further comprising a first and a second memory connected to the frequency meter, and configured to store a first and a second frequency measured by the frequency meter for use in determining the gradient.