Skip to main content
Article thumbnail
Location of Repository

Automatic Model Refinement of GmC Integrators for High-Level Simulation of ContinuousTime Sigma-Delta Modulators

By Michel Vasilevski, Hassan Aboushady and Marie-minerve Louerat

Abstract

Abstract—A Σ ∆ GmC integrator refinement flow is presented. The classically simplified GmC integrator small-signal model was upgraded to be extremely accurate by considering the complete transistor small-signal model. A circuit-level knowledge-based tool was used to execute the designer defined sizing procedure and to extract small signal parameters. By associating the symbolic transfer function to small-signal parameters, the flow, entirely implemented with C++, is able to compute poles and zeros to permit precise behavioral simulations. A 2 nd order Σ∆ modulator was chosen to visualize performance degradations while the specifications were not achievable. a1 K(s+z1)(s+z2) (s+p1)(s+p2

Topics: Fig. 1. a2
Year: 2009
OAI identifier: oai:CiteSeerX.psu:10.1.1.352.4988
Provided by: CiteSeerX
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • http://citeseerx.ist.psu.edu/v... (external link)
  • http://www-soc.lip6.fr/~hassan... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.