N
Nadeem Afzal
Researcher at Linköping University
Publications - 7
Citations - 18
Nadeem Afzal is an academic researcher from Linköping University. The author has contributed to research in topics: Delta-sigma modulation & Oversampling. The author has an hindex of 3, co-authored 7 publications receiving 18 citations.
Papers
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Proceedings ArticleDOI
Study of modified noise-shaper architectures for oversampled sigma-delta DACs
Nadeem Afzal,J. Jacob Wikner +1 more
TL;DR: Modified low-complex, hybrid architectures for digital, oversampled sigma-delta digital-to-analog converters (ΣΔDACs) are explored in terms of signal- to-noise ratio (SNR) and subDAC complexity and noise shaper complexity.
Proceedings ArticleDOI
A study on power consumption of modified noise-shaper architectures for ΣΔ DACs
TL;DR: In this paper, modified, hybrid architectures for digital, oversampled sigma-delta digital-to-analog converters (ΣΔDACs) are explored in terms of signal-tonoise ratio (SNR) and power consumption.
Proceedings ArticleDOI
A digital-RF converter architecture for IQ modulator with discrete-time low resolution quadrature LO
TL;DR: A digital-to-RF converter (DRFC) architecture for IQ modulator that utilizes a low pass ΣΔ modulator and a semi-digital FIR filter and simulation results are presented to support the feasibility of the solution.
MonographDOI
Complexity and Power Reduction in Digital Delta-Sigma Modulators
TL;DR: A number of state-of-the-art low power consuming digital delta-sigma modulator (ΔΣ) architectures for digital-to-analog converters (DAC) are presented in this thesis.
Proceedings ArticleDOI
Power efficient arrangement of oversampling sigma-delta DAC
Nadeem Afzal,J. Jacob Wikner +1 more
TL;DR: It is shown that effective performance can be achieved from the presented hardware efficient arrangement of digital-to-analog conversion blocks using buss-split design of digital sigma-delta modulator.