| 摘要 |
A DA converter for converting an inputted digital signal to an analog signal includes an integrator which outputs the value of integral of the digital signal every fixed cycle, a level comparison part which judges whether the value of integral outputted by the integrator has come into the state of exceeding a predetermined reference value, a feedback part which subtracts a predetermined value from the value of integral according to the compared result obtained by the level comparison part, a timing information generation part which generates timing information on a variation point of transition from the value of integral of each cycle outputted by the integrator and the value of integral in a cycle just before each cycle into the state of exceeding by time resolution smaller than the predetermined cycle, a timing generation part which generates a timing signal by the time resolution smaller than the predetermined cycle according to the timing information, and a signal processing part which generates the analog signal according to the timing signal.
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