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IBIS Case Studies: Comparison of Simulations. Fabrizio Zanella, EMC Corporation. Objectives. Compare SI Tools using IBIS models Compare to empirical measurements and SPICE simulations All measurements and simulations performed on SI test boards created at EMC. IBIS Model Case Studies.
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IBIS Case Studies:Comparison of Simulations Fabrizio Zanella, EMC Corporation IBIS SUMMIT 10/15/98
Objectives • Compare SI Tools using IBIS models • Compare to empirical measurements and SPICE simulations • All measurements and simulations performed on SI test boards created at EMC IBIS SUMMIT 10/15/98
IBIS Model Case Studies • Case 1: TTL signals: empirical,SPICE, IBIS • Case 2: SRAM signals: empirical,SPICE, IBIS • Case 3: IBIS model comparison IBIS SUMMIT 10/15/98
Case 1: Lab measurement IBIS SUMMIT 10/15/98
Case 1: SPICE IBIS SUMMIT 10/15/98
Case 1: Simulators A,B (IBIS models) IBIS SUMMIT 10/15/98
Case 2: Lab Measurement IBIS SUMMIT 10/15/98
Case 2: Simulators A, B (IBIS models) IBIS SUMMIT 10/15/98
Case 2: SPICE IBIS SUMMIT 10/15/98
Case 3: Comparison of IBIS models Data Sheet model vs Spi2IBIS model IBIS SUMMIT 10/15/98
Summary • SI Simulators, using IBIS models, are complementary and accurate • IBIS models need to be checked: beware of data sheet models IBIS SUMMIT 10/15/98