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 ABSTRACT
An approach for generating constraints on interconnect parasitics to drive the routing of analog circuits is presented. The approach involves (a) generation of a set of bounding constraints on the critical parasitics of a circuit to provide maximum flexibility to the router while meeting the performance constraints, and (b) deriving a set of matching constraints on the parasitics from matched-node-pair and matched-branch-pair information in differential circuits. A prototype constraint generator is described. It is hoped that the constraint-based approach suggested in this paper, if applied to both placement and routing, will reduce the need of time consuming layout-extraction-simulation iterations in the physical design phase of analog circuits.
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.
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CITED BY 14
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Edoardo Charbon , Enrico Malavasi , Davide Pandini , Alberto Sangiovanni-Vincentelli, Simultaneous placement and module optimization of analog IC's, Proceedings of the 31st annual conference on Design automation, p.31-35, June 06-10, 1994, San Diego, California, United States
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D. Theune , R. Thiele , T. Lengauer , A. Feldmann, HERO: hierarchical EMC-constrained routing, Proceedings of the 1992 IEEE/ACM international conference on Computer-aided design, p.468-472, November 1992, Santa Clara, California, United States
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Edoardo Charbon , Enrico Malavasi , Alberto Sangiovanni-Vincentelli, Generalized constraint generation for analog circuit design, Proceedings of the 1993 IEEE/ACM international conference on Computer-aided design, p.408-414, November 07-11, 1993, Santa Clara, California, United States
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Sujoy Mitra , Sudip K. Nag , Rob A. Rutenbar , L. Richard Carley, System-level routing of mixed-signal ASICs in WREN, Proceedings of the 1992 IEEE/ACM international conference on Computer-aided design, p.394-399, November 1992, Santa Clara, California, United States
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Eric Felt , Edoardo Charbon , Enrico Malavasi , Alberto Sangiovanni-Vincentelli, An efficient methodology for symbolic compaction of analog IC's with multiple symmetry constraints, Proceedings of the conference on European design automation, p.148-153, November 1992, Congress Centrum Hamburg, Hamburg, Germany
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L.-O. Donzelle , P.-F. Dubois , B. Hennion , J. Parissis , P. Senn, A constraint based approach to automatic design of analog cells, Proceedings of the 28th conference on ACM/IEEE design automation, p.506-509, June 17-22, 1991, San Francisco, California, United States
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Edoardo Charbon , Ranjit Gharpurey , Alberto Sangiovanni-Vincentelli , Robert S. Meyer, Semi-analytical techniques for substrate characterization in the design of mixed-signal ICs, Proceedings of the 1996 IEEE/ACM international conference on Computer-aided design, p.455-462, November 10-14, 1996, San Jose, California, United States
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Paolo Miliozzi , Iasson Vassiliou , Edoardo Charbon , Enrico Malavasi, Use of sensitivities and generalized substrate models in mixed-signal IC design, Proceedings of the 33rd annual conference on Design automation, p.227-232, June 03-07, 1996, Las Vegas, Nevada, United States
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Edoardo Charbon , Paolo Miliozzi , Enrico Malavasi , Alberto L. Sangiovanni-Vincentelli, Generalized constraint generation in the presence of non-deterministic parasitics, Proceedings of the 1996 IEEE/ACM international conference on Computer-aided design, p.187-192, November 10-14, 1996, San Jose, California, United States
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Raoul F. Badaoui , Hemanth Sampath , Anuradha Agarwal , Ranga Vemuri, A high level language for pre-layout extraction in parasite-aware analog circuit synthesis, Proceedings of the 14th ACM Great Lakes symposium on VLSI, April 26-28, 2004, Boston, MA, USA
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Iasson Vassiliou , Henry Chang , Alper Demir , Edoardo Charbon , Paolo Miliozzi , Alberto Sangiovanni-Vincentelli, A video driver system designed using a top-down, constraint-driven methodology, Proceedings of the 1996 IEEE/ACM international conference on Computer-aided design, p.463-468, November 10-14, 1996, San Jose, California, United States
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