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Simulating Switched-Capacitor Filters with SpectreRF

The Designer s Guide Communitydownloaded from 2019, Kenneth S. Kundert All Rights Reserved1 of 25 Version 6c, 28 July 2006 SpectreRF provides powerful and unique new analyses that offer designers of Switched-Capacitor Filters the ability to predict the performance of their circuits in ways that werenot previously possible. It allows designers to quickly and directly predict the transferand noise characteristics of Filters described at the transistor level while including all ofthe important second-order effects. Previously, designers had to choose between using atraditional circuit simulator such as SPICE and a discrete-time simulator such as Swit-cap. SPICE simulates from a transistor-level description and so includes all of the desiredsecond-order effects, but is not capable of directly computing the transfer and noisecharacteristics of circuit .

switched-capacitor circuits play a much more important role in switched-current filters. Most of these effects can only be included when using transistor-level simulators. This document starts off by showing how SpectreRF can be applied to predict the per-formance of a simple track-and-hold, which is nothing more than a periodically clocked ...

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