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With technology scaling down to 90nm and below, many yield-driven design and optimization methodologies have been proposed to cope with the prominent process variation and to increase the yield. A critical issue that affects the efficiency of those methods is to estimate the yield when given design parameters under variations. Existing methods either use… (More)
Performance failure has become a significant threat to the reliability and robustness of analog circuits. In this article, we first develop an efficient non-Monte-Carlo (NMC) transient mismatch analysis, where transient response is represented by stochastic orthogonal polynomial (SOP) expansion under PVT variations and probabilistic distribution of… (More)
—This paper presents a Sigma-Delta fractional-N frequency synthesizer for multi-standard receiver. The synthesizer's output range is 1.8~5.8GHz and covers the standards of DCS1800, WCDMA, TD-SCDMA, WLAN802.11a/b/g and Bluetooth. Frequency planning is elaborately done to make sure the synthesizer meets specifications of standards mentioned above. QVCO with a… (More)