Download e-book for kindle: A Top-Down, Constraint-Driven Design Methodology for Analog by Henry Chang, Edoardo Charbon, Umakanta Choudhury, Alper

By Henry Chang, Edoardo Charbon, Umakanta Choudhury, Alper Demir, Eric Felt, Edward Liu, Enrico Malavasi, Alberto Sangiovanni-Vincentelli, Iasson Vassiliou

ISBN-10: 1441987525

ISBN-13: 9781441987525

ISBN-10: 1461346800

ISBN-13: 9781461346807

Analog circuit layout is usually the bottleneck while designing combined analog-digital platforms. A Top-Down, Constraint-Driven DesignMethodology for Analog built-in Circuits offers a brand new method in response to a top-down, constraint-driven layout paradigm that offers an answer to this challenge. this technique has significant benefits: (1) it offers a excessive likelihood for the 1st silicon which meets all requirements, and (2) it shortens the layout cycle.
A Top-Down, Constraint-Driven layout technique for Analog IntegratedCircuits is a part of an ongoing examine attempt on the college of California at Berkeley within the electric Engineering and computing device Sciences division. Many college and scholars, earlier and current, are engaged on this layout technique and its assisting instruments. The significant objectives are: (1) constructing the layout technique, (2) constructing and utilising new instruments, and (3) `proving' the method by means of venture `industrial power' layout examples. The paintings offered this is neither a starting nor an result in the advance of an entire top-down, constraint-driven layout technique, yet particularly a step in its improvement.
This paintings is split into 3 components. bankruptcy 2 offers the layout technique in addition to beginning fabric. Chapters 3-8 describe assisting innovations for the technique, from behavioral simulation and modeling to circuit module turbines. ultimately, Chapters 11th of September illustrate the method intimately by means of proposing the complete layout cycle via 3 large-scale examples. those contain the layout of a present resource D/A converter, a Sigma-Delta A/D converter, and a video motive force process. bankruptcy 12 offers conclusions and present examine issues.
A Top-Down, Constraint-Driven layout method for Analog IntegratedCircuits can be of curiosity to analog and mixed-signal designers in addition to CAD device developers.

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Additional info for A Top-Down, Constraint-Driven Design Methodology for Analog Integrated Circuits

Sample text

Ourapproach todesigning complex analog and mixed-signal systems relies onrealistic circuitmodeling at each step and the abilityto propagate constraints step by step. We do not need to verify top level system performance from low-level implementation details with a SPICE simulation of the entire system, but we do need to guarantee correct translation of one level of constraints to a set of lower level constraints. The tools for constraint translation are the behavioral models at each level, the behavioral simulator, and optimization, which will produce constraints for thelower levels, using the behavioral models and the simulator.

Thedotted linerepresents theideal behavior. Problematic points are indicated on the curve. Point A shows that there is no "off" state. Point B illustrates an extreme deviation from the ideal. In a signal processing system, this could result in large unwanted harmonics. PointC shows anarea of non-monotonicity. In a feedback system, thiscould resultin a disastrous reversal of the feedback polarity. PointD shows an extremely highoutput. Thiscould overload the next stage. Methods for characterizing these non-idealities have been developed.

Kundert in [165] presents an accurate Fourier analysis method for circuit simulatorsbased on the direct computation of the Fourier integral rather than on the discrete Fourier transform. • Aproblem thatarises with higher integration is theundesired interactions through substrate and package coupling [l08] . A substrate and package modeling and simulation methodology for accurate prediction of these coupling effects priorto fabrication is definitely needed [108]. Recent workon thisproblem canbe found in [96][308][294].

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A Top-Down, Constraint-Driven Design Methodology for Analog Integrated Circuits by Henry Chang, Edoardo Charbon, Umakanta Choudhury, Alper Demir, Eric Felt, Edward Liu, Enrico Malavasi, Alberto Sangiovanni-Vincentelli, Iasson Vassiliou


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