Reduced complexity MASH delta-sigma modulator
Kennedy, Michael Peter
A reduced complexity digital multi-stage noise shaping (MASH) delta-sigma modulator for fractional-N frequency synthesizer applications is proposed. A long word is used for the first modulator in a MASH structure; the sequence length is maximized by setting the least significant bit of the input to 1; shorter words are used in subsequent stages. Experimental results confirm simulations
Digital delta-sigma modulators , Noise shaping , Multistage noise shaping , Sequence length
Ye, Z., Kennedy, M.P., 2007. Reduced Complexity Mash Delta-Sigma Modulator. IEEE Transactions On Circuits and Systems II - Express Briefs, 54(8), pp.725-729.
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