July 16, 2017

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

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

Analog circuit layout is usually the bottleneck whilst designing combined analog-digital structures. A Top-Down, Constraint-Driven DesignMethodology for Analog built-in Circuits provides a brand new technique in keeping with a top-down, constraint-driven layout paradigm that offers an answer to this challenge. this system has relevant merits: (1) it presents a excessive likelihood for the 1st silicon which meets all requirements, and (2) it shortens the layout cycle.
A Top-Down, Constraint-Driven layout method for Analog IntegratedCircuits is a part of an ongoing examine attempt on the collage of California at Berkeley within the electric Engineering and laptop Sciences division. Many school and scholars, previous and current, are engaged on this layout technique and its aiding instruments. The central targets are: (1) constructing the layout method, (2) constructing and making use of new instruments, and (3) `proving' the technique by means of project `industrial energy' layout examples. The paintings provided this is neither a starting nor an result in the improvement of an entire top-down, constraint-driven layout method, yet fairly a step in its improvement.
This paintings is split into 3 components. bankruptcy 2 provides the layout method in addition to origin fabric. Chapters 3-8 describe assisting strategies for the method, from behavioral simulation and modeling to circuit module turbines. eventually, Chapters Sep 11 illustrate the method intimately by means of proposing the whole 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 approach. bankruptcy 12 provides conclusions and present learn subject matters.
A Top-Down, Constraint-Driven layout technique for Analog IntegratedCircuits may be of curiosity to analog and mixed-signal designers in addition to CAD software developers.

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

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G. a pre-made cell) the "simulator" could just be a list of performance specifications. If a suitable architecture cannot be found, then this selectormust return to the uppernodethe fact that the selection has failed . This would mean that the specifications cannotbe met; theymust be changed in orderto continue. If a standard cell (pre-designed cell) was chosen then a successful return to the upper node is made. Given specifications for a particular architecture the next step is to map the chosen architecture to the detailed specifications of the component (lower) blocks.

6) where U, is an 2N - 1 x rt transformation matrix, Ect is an rt x rt diagonal matrix, and rt is therank of Ect. Thecolumns of U, arecalled the error signatures [288] and form a set of orthonormal vectors spanning the error space. 7) where Ct . , normal(O, Ect) is a zero mean multivariate normal distribution with r statistically independent variates. 5). The parameters U, and flt areunique for each NO architecture, while thedistribution C represents a mixture of therelevant process variations.

In this research, we focu s on modeling a memoryless converter for static performance specifications. Previously, Ruan [255] proposed different behavioral models fordifferent types of NO converter architectures. Onedrawback is thatthearchitectural dependence necessitates derivation of a new model for any changes in the converter architecture. Another drawback is that the model is deterministic. 1) where code is the outputcode, A is a function, Vl n is the input, and v is a set of m parameters. There are twoproblems with this behavioral modeling approach; namely, • Worst case analysis must be used to find worstcase converter performance.

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