Method for synchronizing digital/analogue and/or analogue/digital data converters to an active front of a common reference clock CLK, characterized in that the converters form at least one series transmission chain of a synchronizing signal (SYNC-m) emitted by a control unit, such that: - the converter (CN 1) of rank 1 in the chain has a synchronization input connected to a synchronization control output (OUT-sync) of the control unit; - each converter (CN j) of rank j higher than 1 in the chain has a synchronization input connected to the synchronization output of the converter of rank j-1 (CN j-1) in the chain; the synchronizing method being characterized in that a procedure for synchronizing the converters of the chain to a reference-clock active front activated by the control unit comprises the following steps, which are controlled by the control unit: - a step of initializing, in each converter, a synchronization configuration register (REG j) including at least one polarity parameter (Sel-Edge j) defining the polarity of a reference-clock front for detection of signals input via the synchronization input of the converter as the polarity of the reference-clock active front or the inverse polarity; then - sending to the synchronization control output (SYNC-out) of the control unit a synchronizing signal (SYNC-m), which is a pulse of width at least equal to one reference-clock period; the synchronizing method also being characterized in that each converter in the chain is configured to carry out the following steps: - a) a step of detecting, on a CLK reference-clock front, that front has the polarity defined by the value of said polarity parameter (Sel-Edge j) configured in the converter, a synchronizing signal (SYNC_in j) input via the synchronization input, - b) a step of aligning with the following reference-clock active front the signal detected in step a), so as to deliver a synchronizing signal aligned with a reference-clock active front, and applying said signal (SYNC-out j) to the synchronization output of the converter. - the converter (CN 1) of rank 1 in the chain has a synchronization input connected to a synchronization control output (OUT-sync) of the control unit; - each converter (CN j) of rank j higher than 1 in the chain has a synchronization input connected to the synchronization output of the converter of rank j-1 (CN j-1) in the chain; - a step of initializing, in each converter, a synchronization configuration register (REG j) including at least one polarity parameter (Sel-Edge j) defining the polarity of a reference-clock front for detection of signals input via the synchronization input of the converter as the polarity of the reference-clock active front or the inverse polarity; then - sending to the synchronization control output (SYNC-out) of the control unit a synchronizing signal (SYNC-m), which is a pulse of width at least equal to one reference-clock period; - a) a step of detecting, on a CLK reference-clock front, that front has the polarity defined by the value of said polarity parameter (Sel-Edge j) configured in the converter, a synchronizing signal (SYNC_in j) input via the synchronization input, - b) a step of aligning with the following reference-clock active front the signal detected in step a), so as to deliver a synchronizing signal aligned with a reference-clock active front, and applying said signal (SYNC-out j) to the synchronization output of the converter.