A first encoding part encodes a reference timing determined by a reference clock by using a delay line. A second encoding part encodes a measurement start timing and a measurement end timing of a measurement period determined by a measurement signal to be measured by also using the delay line. A count part counts the reference clocks included in the measurement period. A fraction calculation part calculates a start fraction number indicating a time difference from the measurement start timing and an immediately-following reference timing and an end fraction number indicating a time difference from the measurement end timing to an immediately-following reference timing, based on the encoding result. The fraction calculation part then calculates a fraction data indicating a difference between the measurement period and a product of the period of the reference timing and the count value of the count part.

The present disclosure relates to a device for determining an arrival time of a signal pulse, comprising a comparison means configured such that it compares the time course of a signal pulse (V(t)) with two reference values (V1, V2) and triggers a time analysis means (TDC) of the device when the signal pulse (V(t)) reaches a reference value (V1, V2), wherein the time analysis means (TDC) is configured such that it determines the time between the first and the second triggering, and wherein the device is configured such that it determines an arrival time of the signal pulse by means of the determined time and by means of the reference values (V1,V2). The device can be used to determine an arrival time of a signal pulse in a technically simple manner. The present disclosure also relates to a method for determining an arrival time.