| 摘要 |
PROBLEM TO BE SOLVED: To provide a device and method for signal analysis, capable of reducing a lag in start time for measuring a signal under measurement by reducing a time lag between input timing of a trigger signal and latch timing of the trigger signal.SOLUTION: In a signal analysis device, a phase shift unit 42 shifts the phase of a reference clock generated by a clock generator unit 41 by a plurality of different amounts. A latch unit 43, 46 latches an input trigger signal using each of the clocks phase-shifted by the phase shift unit 42, and outputs resultant latched trigger signals in synchronization with the reference clock. A determination unit 44 determines input timing of the trigger signal using the output signal from the latch unit. The input timing of the trigger signal can thus be determined with a resolution as small as the phase difference, enabling reduction of a lag in start time for measuring a signal under measurement. |
