Please use this identifier to cite or link to this item:
|Title:||Bandpass sigma-delta modulator employing SAW resonator as loop filter||Authors:||Yu, R.
|Keywords:||Analog-to-digital converter (ADC)
Sigma-delta modulator (ΣΔM)
Surface acoustic wave (SAW) resonator
|Issue Date:||Apr-2007||Citation:||Yu, 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||Abstract:||Continuous-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.||Source Title:||IEEE Transactions on Circuits and Systems I: Regular Papers||URI:||http://scholarbank.nus.edu.sg/handle/10635/82004||ISSN:||10577122||DOI:||10.1109/TCSI.2007.890615|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jun 17, 2019
WEB OF SCIENCETM
checked on Jun 10, 2019
checked on May 25, 2019
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.