tutdac99 - VHDL VHDL AMS AMS ( &KULVWHQ ....

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Unformatted text preview: VHDL VHDL AMS AMS ( &KULVWHQ . %DNDODU $ 0 'HZH\ ( 0RVHU '$& 9+'/ $06 7XWRULDO Analog and Mixed-Signal Modeling Using the VHDL-AMS Language Ernst Christen Beaverton, OR Kenneth Bakalar Rockville, MD Allen M. Dewey Durham, NC Eduard Moser Stuttgart, Germany 36 th Design Automation Conference New Orleans, June 21-25, 1999 VHDL VHDL AMS AMS ( &KULVWHQ . %DNDODU $ 0 'HZH\ ( 0RVHU '$& 9+'/ $06 7XWRULDO Tutorial Organization Part I: Introduction to the VHDL-AMS Language Continuous Time Concepts Mixed Continuous/Discrete Time Concepts Frequency Domain and Noise Modeling Part II: VHDL-AMS in Practical Applications VHDL-AMS Modeling Guidelines VHDL-AMS Modeling Techniques IC Applications Modeling at Different Levels of Abstraction Telecom Applications Modeling Multi-Disciplinary Systems Automotive Applications MEMS Modeling Using the VHDL-AMS Language VHDL VHDL AMS AMS ( &KULVWHQ . %DNDODU $ 0 'HZH\ ( 0RVHU '$& 9+'/ $06 7XWRULDO Part I: Introduction to the VHDL-AMS Language VHDL VHDL AMS AMS ( &KULVWHQ . %DNDODU $ 0 'HZH\ ( 0RVHU '$& 9+'/ $06 7XWRULDO Outline Introduction Brief Overview of VHDL-AMS Basic Concepts: DAEs Systems with Conservation Semantics: Diode Mixed Technology: Diode with Self Heating Piecewise Defined Behavior: Compressor,Voltage Limiter Procedural Modeling: Weighted Summer Signal-Flow Modeling: Adder-Integrator, Conversions Solvability: Voltage Source, Signal Flow Amplifier Initial Conditions: Capacitor Implicit Quantities Mixed-Signal Modeling: Comparators, D/A Converter VHDL-AMS Model Execution Discontinuities: SCR, Voltage Limiter, Bouncing Ball Time-Dependent Modeling: Sinusoid Voltage Source Frequency Domain Modeling: Current Source, Filter Noise Modeling: Resistor, Diode Conclusion VHDL VHDL AMS AMS ( &KULVWHQ . %DNDODU $ 0 'HZH\ ( 0RVHU '$& 9+'/ $06 7XWRULDO What is VHDL-AMS IEEE Std. 1076-1993: VHDL (VHSIC Hardware Description Language) supports the description and simulation of event-driven systems. IEEE Std. 1076.1-1999: Extension to VHDL to support the description and simulation of analog and mixed-signal circuits and systems IEEE Std. 1076.1-1999 together with IEEE Std. 1076-1993 is informally known as VHDL-AMS VHDL-AMS is a strict superset of IEEE Std. 1076-1993 Any model valid in VHDL 1076 is valid in VHDL-AMS and yields the same simulation results VHDL VHDL AMS AMS ( &KULVWHQ . %DNDODU $ 0 'HZH\ ( 0RVHU '$& 9+'/ $06 7XWRULDO Why is VHDL-AMS needed? VHDL 1076 is suitable for modeling and simulating discrete systems Many of todays designs include at least some continuous characteristics: System design Mixed-signal electrical designs Mixed electrical/non-electrical designs Modeling design environment Analog design Analog behavioral modeling and simulation Digital design Detailed modeling (e.g. submicron effects) Designers want a uniform description language VHDL...
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tutdac99 - VHDL VHDL AMS AMS ( &KULVWHQ ....

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