RIPPLE CHARACTERISTIC CORRECTION CIRCUIT AND RIPPLE CHARACTERISTIC CORRECTION METHOD

摘要

PROBLEM TO BE SOLVED: To reduce influences of ripple less in a circuit.;SOLUTION: In a ripple characteristic correction circuit 10 for correcting ripple indicating an amplitude change of an output signal caused by a frequency change of an input signal in a signal processing circuit 12, a plurality of amplitude detector correction signals of different amplitudes and a plurality of ripple measuring signals of different frequencies are inputted to the signal processing circuit 12, respectively and amplitudes of the amplitude detector correction signals and the ripple measuring signals outputted from the signal processing circuit 12 are measured, respectively. Ripple of the signal processing circuit 12 is then calculated based on the measured amplitudes.;COPYRIGHT: (C)2006,JPO&NCIPI