Abstract: A phase controller device according to the invention comprises a hardware core that is formed by a signal detector, a voltage-controlled oscillator, a phase comparator, and an integration unit, where the hardware core, by controlling the working clock pulse frequency of the microcontroller, brings an output clock pulse signal that is generated by a microcontroller into phase with the input clock pulse information that is received from the input data stream, and does so in such a manner that the jitter is low. The microcontroller executes a program with this working clock pulse, where with that program the microcontroller generates the output clock pulse signal with an output clock pulse frequency that is in a predetermined division ratio to the control clock pulse frequency that is generated by the voltage-controlled oscillator and is given to the microcontroller as a working clock pulse frequency.