Output signal generation device having a phase adjustment unit and method for adjusting a phase difference between an input and an output signal

摘要

An output signal generation device in accordance with disclosed embodiments includes: a phase adjustment unit that generates an output signal on the basis of an input signal and is capable of executing an adjustment operation of setting the phase difference between the input signal and the output signal to a predetermined value; a holding unit that holds a reference voltage; a comparison voltage generation unit that generates a comparison voltage that is dependent on a power supply voltage; and a control unit that intermittently compares the comparison voltage with the reference voltage held in the holding unit, causes the phase adjustment circuit to execute the adjustment operation when the comparison result satisfies a predetermined condition representing a variation in the power supply voltage, and changes the reference voltage held in the holding unit in accordance with the power supply voltage.

主权项

1. An output signal generation device including:
a phase adjustment unit configured to generate an output signal in accordance with an input signal, and execute an adjustment operation in which the phase difference between the input signal and the output signal is set to a predetermined value; a holding unit for holding a reference voltage; a comparison voltage generation unit for generating a comparison voltage dependent on a power source voltage; and a control unit which intermittently compares the comparison voltage and the reference voltage held in the holding unit, and when the comparison result satisfies a predetermined condition indicating a fluctuation in the power source voltage, the control unit causes the phase adjustment unit to execute the adjustment operation, and also alters the reference voltage held in the holding unit, in accordance with the power source voltage.