Please use this identifier to cite or link to this item: https://doi.org/10.1109/TCSI.2007.890615
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dc.titleBandpass sigma-delta modulator employing SAW resonator as loop filter
dc.contributor.authorYu, R.
dc.contributor.authorXu, Y.P.
dc.date.accessioned2014-10-07T04:24:14Z
dc.date.available2014-10-07T04:24:14Z
dc.date.issued2007-04
dc.identifier.citationYu, R., Xu, Y.P. (2007-04). Bandpass sigma-delta modulator employing SAW resonator as loop filter. IEEE Transactions on Circuits and Systems I: Regular Papers 54 (4) : 723-735. ScholarBank@NUS Repository. https://doi.org/10.1109/TCSI.2007.890615
dc.identifier.issn10577122
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/82004
dc.description.abstractContinuous-time bandpass (BP) sigma-delta modulators (ΣΔMs) employing surface acoustic wave (SAW) resonators as loop filters are presented. Compared with the loop filters realized with GmM-C and LC resonators, the SAW resonator has the advantage of high-Q factor, wide resonant frequency range and accurate resonant frequency without the need for automatic tuning. With the proposed anti-resonance cancellation and loop filter phase compensation techniques, a second- and a fourth-order BP ΣΔMs are demonstrated in a 0.35-μm CMOS technology. Both modulators are tested with 47.3-MHz off-chip SAW resonators. The second-order modulator attains a dynamic range of 57 dB and peak signal-to-noise distortion ratio (SNDR) of 54 dB and the fourth-order one achieves a dynamic range of 69 dB and peak SNDR of 66 dB, both in a 200-kHz signal bandwidth. The fourth-order modulator is also measured in a 3.84-MHz signal bandwidth and achieves a dynamic range of 52.5 dB and peak SNDR of 50 dB, an effective 8-bit resolution. © 2007 IEEE.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1109/TCSI.2007.890615
dc.sourceScopus
dc.subjectAnalog-to-digital converter (ADC)
dc.subjectBandpass (BP)
dc.subjectSigma-delta modulator (ΣΔM)
dc.subjectSurface acoustic wave (SAW) resonator
dc.typeArticle
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.doi10.1109/TCSI.2007.890615
dc.description.sourcetitleIEEE Transactions on Circuits and Systems I: Regular Papers
dc.description.volume54
dc.description.issue4
dc.description.page723-735
dc.identifier.isiut000245865200004
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