LSB dithering in MASH delta–sigma D/A converters
IEEE Transactions on Circuits and Systems I: Regular Papers, 2007•ieeexplore.ieee.org
Theoretical sufficient conditions are presented that ensure that the quantization noise from
every constituent digital delta-sigma (DeltaSigma) modulator in a multistage digital
DeltaSigma modulator is asymptotically white and uncorrelated with the input. The
conditions also determine if spectral shape can be imparted to the dither's contribution to the
power spectral density of the multistage digital DeltaSigma modulator's output. A large class
of popular multistage digital DeltaSigma modulators that satisfy the conditions are identified …
every constituent digital delta-sigma (DeltaSigma) modulator in a multistage digital
DeltaSigma modulator is asymptotically white and uncorrelated with the input. The
conditions also determine if spectral shape can be imparted to the dither's contribution to the
power spectral density of the multistage digital DeltaSigma modulator's output. A large class
of popular multistage digital DeltaSigma modulators that satisfy the conditions are identified …
Theoretical sufficient conditions are presented that ensure that the quantization noise from every constituent digital delta-sigma (DeltaSigma) modulator in a multistage digital DeltaSigma modulator is asymptotically white and uncorrelated with the input. The conditions also determine if spectral shape can be imparted to the dither's contribution to the power spectral density of the multistage digital DeltaSigma modulator's output. A large class of popular multistage digital DeltaSigma modulators that satisfy the conditions are identified and tabulated for easy reference
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