Signal source synchronization circuit

摘要

A signal source synchronization circuit includes: a first TDC circuit (12) that measures a first path delay time (τa1) which is a time difference between an input time of a trigger signal to a first input terminal (a) and an input time of the trigger signal to a second input terminal (b); and a second TDC circuit (13) that measures a second path delay time (τa2) which is a time difference between an input time of the trigger signal to a first input terminal (a) and an input time of the trigger signal to a second input terminal (b), wherein a first phase shifter adjustment circuit (5) sets a phase adjustment amount corresponding to the first path delay time (τa1) in a first phase shifter (3), and a second phase shifter adjustment circuit (9) sets a phase adjustment amount corresponding to the second path delay time (τa2) in a second phase shifter (7).