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 (UC), such that: - the converter (CN 1 ) of rank 1 in the chain has a synchronization input (IN) 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 (IN) connected to the synchronization output (OUT) 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 (CLK) front for detection of signals input via the synchronization input (IN) 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 (IN), - 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 (OUT) of the converter. - the converter (CN 1 ) of rank 1 in the chain has a synchronization input (IN) 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 (IN) connected to the synchronization output (OUT) 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 (CLK) front for detection of signals input via the synchronization input (IN) 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 (IN), - 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 (OUT) of the converter. <EOS>