A 47.3-MHz SAW resonator based CMOS second-order bandpass sigma-delta modulator with 54-dB peak SNDR

Abstract

A second-order bandpass sigma-delta modulator employing a SAW resonator is described. The proposed modulator is fabricated in a 0.35-/spl mu/m CMOS process and tested with an off-chip 47.3-MHz SAW resonator. The measured results show a dynamic range of 57dB and a SNDR of 54dB in a 200-kHz signal bandwidth when sampled at 189.2 MHz. The modulator operates under a 3.3-V single supply with a power dissipation of 30mW.

DOI: 10.1109/CICC.2005.1568643

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Cite this paper

@article{Yu2005A4S, title={A 47.3-MHz SAW resonator based CMOS second-order bandpass sigma-delta modulator with 54-dB peak SNDR}, author={Rui Yu and Yong Ping Xu}, journal={Proceedings of the IEEE 2005 Custom Integrated Circuits Conference, 2005.}, year={2005}, pages={203-206} }