Browsing by Subject "Multistage noise shaping"

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Browsing by Subject "Multistage noise shaping"

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  • Ye, Zhipeng; Kennedy, Michael Peter (IEEE, 2007-08)
    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 ...
  • Hosseini, Kaveh; Kennedy, Michael Peter (IEEE, 2007-12)
    This paper presents a modified structure for the first-order digital delta-sigma modulator (DDSM) which yields the maximum sequence length (N) for all constant digital inputs and for all initial conditions. Using this ...
  • Hosseini, Kaveh; Kennedy, Michael Peter (IEEE, 2007-12)
    A MASH digital delta-sigma modulator (DDSM) is analyzed mathematically. It incorporates first-order error feedback modulators (EFM) which include prime modulus quantizers to guarantee a minimum sequence length M. The purpose ...
  • Ye, Zhipeng; Kennedy, Michael Peter (IEEE, 2009-04)
    Two classes of techniques have been developed to whiten the quantization noise in digital delta-sigma modulators (DDSMs): deterministic and stochastic. In this two-part paper, a design methodology for reduced-complexity ...