Insights into architectural spurs in high performance fractional-N frequency synthesizers

MP Kennedy, X Lu, X Wang - IEEE Open Journal of the Solid …, 2024 - ieeexplore.ieee.org
A fractional-N frequency synthesizer inherently exhibits spurs by virtue of the fact that its
output frequency is not an integer multiple of its reference frequency. Until recently, it …

[图书][B] Computer Applications in Engineering and Management

P Berwal, JS Dhatterwal, KS Kaswan, S Kant - 2022 - taylorfrancis.com
The book Computer Applications in Engineering and Management is about computer
applications in management, electrical engineering, electronics engineering, and civil …

Spur-free MASH delta-sigma modulation

J Song, IC Park - IEEE Transactions on Circuits and Systems I …, 2010 - ieeexplore.ieee.org
For multistage noise-shaping (MASH) delta-sigma modulation, this paper presents a new
structure that is free of spurs for all input values. The proposed MASH structure cascades …

Efficient dithering in MASH sigma-delta modulators for fractional frequency synthesizers

VR Gonzalez-Diaz, MA Garcia-Andrade… - … on Circuits and …, 2010 - ieeexplore.ieee.org
The digital multistage-noise-shaping (MASH) ΣΔ modulators used in fractional frequency
synthesizers are prone to spur tone generation in their output spectrum. In this paper, the …

Digital-to-analog converters based on Delta-Sigma modulators

MS Enuchenko, AS Korotkov - Journal of Communications Technology and …, 2022 - Springer
Digital-to-analog converters based on delta-sigma modulators (ΔΣ-modulators) are
reviewed. The structure and working principle of digital sigma-delta converters are …

Hardware reduction in digital delta-sigma modulators via bus-splitting and error masking—Part I: Constant input

B Fitzgibbon, MP Kennedy… - IEEE Transactions on …, 2011 - ieeexplore.ieee.org
In this two-part paper, a design methodology for bus-splitting digital delta-sigma modulators
(DDSMs) is presented. The design methodology is based on error masking and is applied to …

Spurious tones in digital delta-sigma modulators resulting from pseudorandom dither

MP Kennedy, H Mo, B Fitzgibbon - journal of the Franklin Institute, 2015 - Elsevier
Digital delta-sigma modulators (DDSMs) are finite state machines; their spectra are
characterized by strong periodic tones (so-called spurs) when they cycle repeatedly in time …

Influence of LFSR dither on the periods of a MASH digital delta–sigma modulator

Y Liao, X Fan, Z Hua - … Transactions on Circuits and Systems II …, 2018 - ieeexplore.ieee.org
This brief shows that applying a linear feedback shift register (LFSR) dither to a digital delta-
sigma modulator (DDSM) cannot always increase its fundamental period. For some DDSMs …

Prediction of the spectrum of a digital delta–sigma modulator followed by a polynomial nonlinearity

K Hosseini, MP Kennedy, SH Lewis… - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
This paper presents a mathematical analysis of the power spectral density of the output of a
nonlinear block driven by a digital delta-sigma modulator. The nonlinearity is a memoryless …

Masked dithering of MASH digital delta-sigma modulators with constant inputs using linear feedback shift registers

H Mo, MP Kennedy - … Transactions on Circuits and Systems I …, 2016 - ieeexplore.ieee.org
Digital delta-sigma modulators (DDSMs) are finite state machines; their spectra are
characterized by strong periodic tones (so-called spurs) when they cycle repeatedly in time …