Method for reducing the phase noise introduced in the resynchronization of digital signals using justification, and integrated circuits for the implementation of the method.

摘要

Phase noise occurs in data and/or voice transmission due to re-synchronization by justification of digital signals. Such phase noise can be reduced by comparing the phases of a local clocking and a remote clocking to obtain a comparison signal, modifying the comparison signal by a suitable scale factor, quantisinging the modified comparison signal with a suitable frequency, integrating the quantised signal with a suitable step, and deciding the justification events which are to be overlapped on a local unjustified clocking in accordance with transitions of the quantized signal and with justification opportunities as foreseen by the frame formate used. <IMAGE>