Sensing device comprising a phase locked loop circuit

A sensing device with a phase locked loop circuit that has an oscillator to provide an oscillator output signal is presented. The sensing device has a power amplifier to provide at an output of the power amplifier an amplified output signal based on the oscillator output signal. The amplified output signal has an interfering signal component at the oscillator frequency. The sensing device has a measurement circuit to measure offset information regarding a frequency offset between the oscillator frequency and a target frequency of the oscillator. The frequency offset is due to a frequency pulling effect at the oscillator caused by the interfering signal component of the amplified output signal. The sensing device has a control circuit to use the offset information for trimming the phase locked loop circuit and/or the power amplifier, and/or for determining information regarding an environmental situation at the output of the power amplifier.