A case study of synthesis for industrial-scale analog IP: redesign of the equalizer/filter frontend for an ADSL CODEC

Authors:
Rodney Phelps;Michael J. Krasnicki;Rob A. Rutenbar;L. Richard Carley;James R. Hellums
Affiliations:
Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania;Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania;Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania;Department of Electrical and Computer Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania;Mixed Signal Products, Texas Instruments Incorporated, Dallas, Texas
Venue:
Proceedings of the 37th Annual Design Automation Conference
Year:
2000

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Abstract

A persistent criticism of analog synthesis techniques is that they cannot cope with the complexity of realistic industrial designs, especially system-level designs. We show how recent advances in simulation-based synthesis can be augmented, via appropriate macromodeling, to attack complex analog blocks. To support this claim, we resynthesize from scratch, in several different styles, a complex equalizer/filter block from the frontend of a commercial ADSL CODEC, and verify by full simulation that it matches its original design specifications. As a result, we argue that synthesis has significant potential in both custom and analog IP reuse scenarios.