TY - CHAP
T1 - Design considerations of bandpass CT ΣΔ modulators for software-defined-radio receivers
AU - Salgado, Gerardo Molina
AU - Dolecek, Gordana Jovanovic
AU - Morgado, Alonso
AU - De La Rosa, Jose M.
PY - 2014
Y1 - 2014
N2 - This paper discusses design considerations of LC-based bandpass continuous-time ΣΔ modulators intended for the analog-to-digital conversion of radio-frequency signals in software-defined-radio receivers. A top-down high-level synthesis methodology - based on the combination of undersampling techniques, programmable notch frequency and adequate selection of loop-filter coefficients - is presented to design efficient modulator architectures, which can be adapted to fulfill the requirements of diverse wireless communication standards, while keeping stability and robustness to circuit errors. Main architectureand circuit-level design issues are analyzed, considering diverse case studies based on Gm-LC resonators and different kinds of digital-to-analog converters. Time-domain simulations validate the presented approach1.
AB - This paper discusses design considerations of LC-based bandpass continuous-time ΣΔ modulators intended for the analog-to-digital conversion of radio-frequency signals in software-defined-radio receivers. A top-down high-level synthesis methodology - based on the combination of undersampling techniques, programmable notch frequency and adequate selection of loop-filter coefficients - is presented to design efficient modulator architectures, which can be adapted to fulfill the requirements of diverse wireless communication standards, while keeping stability and robustness to circuit errors. Main architectureand circuit-level design issues are analyzed, considering diverse case studies based on Gm-LC resonators and different kinds of digital-to-analog converters. Time-domain simulations validate the presented approach1.
UR - https://www.scopus.com/pages/publications/84907380988
U2 - 10.1109/ISCAS.2014.6865236
DO - 10.1109/ISCAS.2014.6865236
M3 - Chapter
AN - SCOPUS:84907380988
SN - 9781479934324
T3 - Proceedings - IEEE International Symposium on Circuits and Systems
SP - 718
EP - 721
BT - 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE International Symposium on Circuits and Systems, ISCAS 2014
Y2 - 1 June 2014 through 5 June 2014
ER -