A 4th-order continuous-time ΔΣ modulator with improved clock jitter immunity using RTZ FIR DAC

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dc.contributor.author Assom, Ian
dc.contributor.author Salgado, Gerardo
dc.contributor.author O'Hare, Daniel
dc.contributor.author O'Connell, Ivan
dc.contributor.author O'Donoghue, Keith A.
dc.date.accessioned 2019-05-28T08:45:18Z
dc.date.available 2019-05-28T08:45:18Z
dc.date.issued 2018-12
dc.identifier.citation Assom, I., Salgado, G., O'Hare, D., O'Connell, I. and O'Donoghue, K. A. (2018) 'A 4th-order continuous-time ΔΣ modulator with improved clock jitter immunity using RTZ FIR DAC', 25th IEEE International Conference on Electronics, Circuits and Systems (ICECS 2018), Bordeaux, France, 9-12 December, pp. 725-728. doi: 10.1109/ICECS.2018.8617899 en
dc.identifier.startpage 725 en
dc.identifier.endpage 728 en
dc.identifier.isbn 978-1-5386-9562-3
dc.identifier.isbn 978-1-5386-9116-8
dc.identifier.uri http://hdl.handle.net/10468/7986
dc.identifier.doi 10.1109/ICECS.2018.8617899 en
dc.description.abstract This paper highlights the influence of the main feedback DAC non-idealities affecting the performance of Continuous-Time Delta-Sigma Modulators (CTDSMs) in radio receiver Internet-of-Things (IoT) applications. It proposes the combination of the Return-To-Zero (RTZ) DAC pulse and Finite-Impulse-Response (FIR) DAC to have inherent Inter-Symbol-Interference immunity and reduced clock jitter sensitivity, which is crucial to meet the strict linearity and Signal-To-Noise-Distortion-Ratio (SNDR) requirements for integrated IoT radio receivers. The proposed design is validated through MATLAB® Simulink® simulations, showing that a 4th order single-bit CTDSM with RTZ + FIR DAC can achieve an SNDR performance only 3dB below the ideal even in the presence of 4.2 ps rms of clock jitter at 24 MHz sampling frequency in a 250 kHz signal bandwidth. en
dc.description.sponsorship Science Foundation Ireland (13/RC/207) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) en
dc.relation.ispartof 25th IEEE International Conference on Electronics, Circuits and Systems (ICECS 2018)
dc.relation.uri https://ieeexplore.ieee.org/document/8617899
dc.rights © 2018, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. en
dc.subject Continuous time filters en
dc.subject Delta-sigma modulation en
dc.subject FIR filters en
dc.subject Integrated circuit design en
dc.subject Internet of Things en
dc.subject Intersymbol interference en
dc.subject Jitter en
dc.subject Fourth-order single-bit CTDSM en
dc.subject Intersymbol-interference immunity en
dc.subject MATLAB-Simulink simulations en
dc.subject Integrated IoT radio receivers en
dc.subject Finite-Impulse-Response en
dc.subject Continuous-Time Delta-Sigma Modulators en
dc.subject Finite impulse response filters en
dc.subject Clocks en
dc.subject Modulation en
dc.subject Receivers en
dc.subject Sensitivity en
dc.subject Analog-to-Digital Conversion (ADC) en
dc.subject CTDSM en
dc.subject Radio receiver en
dc.subject Clock jitter en
dc.subject Excess Loop Delay (ELD) en
dc.subject ISI en
dc.subject Compensation en
dc.subject Continuous-time ΔΣ modulator en
dc.subject Return-to-zero finite impulse response en
dc.subject RTZ FIR en
dc.subject DAC en
dc.subject Radio receiver en
dc.title A 4th-order continuous-time ΔΣ modulator with improved clock jitter immunity using RTZ FIR DAC en
dc.type Conference item en
dc.internal.authorcontactother Gerardo Molina-Salgado, Tyndall Competence Centre, University College Cork, Cork, Ireland. +353-21-490-3000 Email: gerardo.molinasalgado@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2019-05-28T08:22:33Z
dc.description.version Accepted Version en
dc.internal.rssid 486903156
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder European Regional Development Fund en
dc.description.status Peer reviewed en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.conferencelocation Bordeaux, France en
dc.internal.IRISemailaddress gerardo.molinasalgado@ucc.ie en
dc.internal.IRISemailaddress ivan.oconnell@tyndall.ie en


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