Digital data sampling by applying a plurality of time delayed trigger signals

摘要

The invention refers to determining time characteristics of one or more data signals (D1) comprising a sequence of a plurality of bits, comprising generating a first trigger signal with first trigger pulse (TR1) and a second trigger pulse (TR1') being delayed with respect to the first trigger pulse (TR1) by a defined time delay, providing a first sample value (A1) in response to the first trigger pulse (TR1) and a second sample value (A2) ) in response to the second trigger pulse (TR1') of the data signal (D1), retrieving an edge model (EM1, EM2) describing signal transitions (E1, E2, E3, E4) of the data signal (D1) as signal magnitude over the time within a bit transition region, determining a first most significant sample value out of the first sample value (A1) and the second sample value (A1'), and determining from said edge model a first time difference (”t1) between the most significant sample value (A1, A1') and a defined transition value.