Device and Method for Monitoring a Sensor Clock Signal

A device for monitoring a sensor clock signal in a sensor unit, the device comprising:

• a sensor oscillator configured to generate the sensor clock signal with a predetermined period duration for data transfer between the sensor unit and a control unit;
• a reference oscillator configured to generate and to output a reference clock signal with a predetermined reference period duration;
• and
• an oscillator monitor configured to receive the sensor clock signal and the reference clock signal and to monitor the sensor clock signal by (i) comparing the sensor clock signal with the reference clock signal, (ii) determining a deviation of a current period duration of the sensor clock signal from a target period duration based on the comparison, and (iii) outputting a counting pulse or a reset pulse to an error counter based on the determined deviation.