VHDL-AMS MODELLING OF CONTINUOUS-TIME COMPLEX BANDPASS DELTA SIGMA MODULATOR

Nejmeddine Jouida, Chiheb Rebai, Adel Ghazel, Dominique Dallet
Abstract:
Continuous-Time delta sigma modulators (CT ΔΣM), by their nature, are mixed-signal systems. That fact creates a discontinuity in the traditional IC design flow which assumes that “discrete” and “continuous” time domain designs require separate design tools. In this work, we present a top level behavioral approach of modeling CT complex Bandpass (CBP) ΔΣM using VHDL-AMS language. The CT ΔΣ model can be used within the analog IC design environment. Fifth-order CT CBP ΔΣM which is tailor made for Bluetooth and WiFi Low-IF receiver demonstrates clearly the modeling technique.
Download:
IMEKO-IWADC-2007-F109.pdf
DOI:
-
Event details
IMEKO TC:
TC4
Event name:
IWADC 2007
Title:

12th IMEKO TC4 International Workshop on ADC Modeling and Testing IWADC (together with XVth IMEKO TC4 International Symposium on Novelties in Electrical Measurements and Instrumentation) (IWADC)

Place:
Iasi, ROMANIA
Time:
19 September 2007 - 21 September 2007