Band-Pass Continuous-Time Delta-Sigma Modulators Employing LWR Resonators

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).
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Mohammad Javidan, Philippe Benabes. Band-Pass Continuous-Time Delta-Sigma Modulators Employing LWR Resonators. IEEE-ICECS International Conference on Electronics, Circuits, and Systems, Aug 2008, St Julians, Malta. pp. 1119-1122, ⟨10.1109/ICECS.2008.4675054⟩. ⟨hal-00287352⟩

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