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DELTA-SIGMA MODULATION CIRCUIT AND DELTA-SIGMA AD CONVERSION DEVICE USING THE SAME
DELTA-SIGMA MODULATION CIRCUIT AND DELTA-SIGMA AD CONVERSION DEVICE USING THE SAME
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机译：使用相同的DELTA-SIGMA调制电路和DELTA-SIGMA AD转换设备
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摘要
PROBLEM TO BE SOLVED: To speedily detect an oscillation state with a simpler configuration than a conventional technique.;SOLUTION: The delta-sigma conversion circuit comprises: an integrator 1 which integrates an input signal; a quantization circuit 2 which quantizes the integrated signal with a predetermined quantization number for DA conversion and outputs a quantization result signal; and a DA converting circuit 4 which outputs an analog signal of a DA conversion result based upon the quantization result signal. The quantization circuit 2 further includes an oscillation detection circuit which detects the integrator 1 being in an oscillation state based upon the integrated signal and outputs an oscillation detection signal, and a reset circuit 3 resets the integrator 1 based upon the oscillation detection signal.;COPYRIGHT: (C)2009,JPO&INPIT
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