An apparatus for synchronizing a data handover between a first clock domain and a second clock domain includes a calculator, a first-in-first-out storage, a synchronization pulse generator, a fill level information provider and a feedback path. The calculator is configured to provide a synchronization pulse cycle duration information describing a temporal position of synchronization pulses at a clock of the second clock domain. The first-in-first-out storage receives an input data value in synchronization with the first clock domain and provides an output data value in synchronization with the second clock domain in response to a current synchronization pulse. The fill level information provider provides fill level information describing a fill level of the FIFO. The feedback path feeds back the fill level information to the calculator to adjust the synchronization pulse cycle duration information.