Method and device for data recovery in burst mode communication system

A device for data recovery in burst mode communication systems, that comprises a generator (11) of n bit clocks (21) with different phases, and a first digitizer (12) that receives an incoming data signal (22) that include a preamble with a defined m-bit sequence and that receives the n bit clocks (21) with different phases, and that provides a digitized preamble (23) with n samples per bit on a parallel bus of m times n samples, characterized in that the device further comprises:

• a multiple correlator (13), responsive to the digitized preamble (23) coming from the first digitizer (12), for correlating the digitized preamble with at least n representations of the defined m-bit sequence of the preamble, each of said at least n representations being delayed one sampling clock period with respect to the previous one of said at least n representations, and providing at least n time-shifted correlation results;
• a timing generator (15) that receives a burst start indication signal (27) and part of the n clocks (36), and which generates a first control signal (28) to enable the first digitizer (12), and
• a selector (14) that receives the at least n time-shifted correlation results (24) and determines which of the at least n time-shifted correlation results (24) is the largest and, generates an optimum phase clock signal (25) at its output.