Title :
Band-pass continuous-time delta-sigma modulators employing LWR resonators
Author :
Javidan, Mohammad ; Bénabés, Philippe
Author_Institution :
Dept. of Signal Process. & Electron. Syst., SUPELEC, Gif-sur-Yvette
fDate :
Aug. 31 2008-Sept. 3 2008
Abstract :
A new topology and design method for continuous-time (CT) band-pass delta-sigma modulators is presented in this paper. The proposed modulator employs a lamb wave resonator (LWR) possessing high Q-factor. This kind of resonator presents many advantages comparing with the LC or Gm-C resonators. Furthermore, the proposed topology is entirely compatible with the LWR transfer functions. This method facilitates the design of band-pass delta-sigma modulators in a wide range of central frequencies (fc).
Keywords :
Q-factor; delta-sigma modulation; network topology; resonators; surface acoustic waves; Q-factor; band-pass continuous-time delta-sigma modulators; lamb wave resonator; topology; Circuit topology; Delta modulation; Design methodology; Electrodes; Film bulk acoustic resonators; Q factor; Resonance; Resonant frequency; Signal processing; Transfer functions;
Conference_Titel :
Electronics, Circuits and Systems, 2008. ICECS 2008. 15th IEEE International Conference on
Conference_Location :
St. Julien´s
Print_ISBN :
978-1-4244-2181-7
Electronic_ISBN :
978-1-4244-2182-4
DOI :
10.1109/ICECS.2008.4675054
