| 摘要 |
A D/A converter in which distortion caused by PWM is favorably removed even if a sampling frequency is low relative to a signal frequency is provided. The D/A converter includes a pulse-width-modulated-signal outputting circuit for outputting a pulse-width-modulated signal having a pulse width in accordance with a digital value of an input digital signal. A distortion-correcting-component generating circuit (3) for generating from the input digital signal at least a correcting component corresponding to a distortion component generated in the pulse-width-modulated-signal outputting circuit; a subtractor circuit (2) disposed at an upstream of the pulse-width-modulated-signal outputting circuit, for subtracting the correcting component generated by the distortion-correcting-component generating circuit from the input digital signal; and a phase correcting circuit (10) for correcting phase characteristics of the input digital signal so that the distortion component and the correcting component have a phase difference such that these components have opposite phases in the pulse-width-modulated-signal outputting circuit; are provided. <IMAGE>
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