Calibration of a segmented digital-time converter

This application discusses, among other things calibration systems to improve the linearity of a digital-time converter (DTC). In one example, a calibration system may include a calibration path, is configured so that it represents a segment of the DTCs, a time-to-digital circuitry configured to receive an output of the Kalibrierpfades and the processed frequency information and clock error information of the segment provides include, and a calibrating machine which is configured such that it receives controller modulation information from a main controller that provides calibration modulation information for the DTC receives the timing error information and provides compensation information for a correction circuit which is coupled to the DTC by using the timing error information ,