Setting the detector to the continuously on mode or intermittently operating based on the amplitude of an input signal

摘要

A semiconductor device including a detector to compare an amplitude of an applicable signal with a specified threshold amplitude, and to output a detector output indicating whether or not the amplitude of the applicable signal is above a specified threshold amplitude, and an intermittent operation control circuit that receives the detector output, and also receives a first signal showing which mode among the multiple modes the standby mode state is in, and sets the detector to the on (enable) mode state when the input signal is above the specified threshold amplitude, and in all other cases intermittently operates the detector according to characteristics of the input signal in the mode shown by the applicable first signal.

主权项

1. A semiconductor device comprising:
a detector to compare an amplitude of an applicable signal with a specified threshold amplitude, and to output a detector output indicating whether or not the amplitude of the applicable signal is above a specified threshold amplitude; and an intermittent operation control circuit that receives the detector output, and also receives a first signal showing which mode among the multiple modes the standby mode state is in, and sets the detector to the on (enable) mode state when the input signal is above the specified threshold amplitude, and in all other cases intermittently operates the detector according to characteristics of the input signal in the mode shown by the applicable first signal.