专利名称：High speed time-interleaved ADC gain offt
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and skew mitigation
人民币基准利率发明人：Gavin D. Parnaby,Vasudevan
Parthasarathy,John S. Wang
申请号：US14662001
申请日：20150318
公开号：US09270291B1
公开日：
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学习与评价20160223
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专利附图：
摘要：Methods and apparatus are described for timing skew mitigation in time-interleaved ADCs (TI-ADCs) that may be performed for any receive signal without any
special signals during blind initialization, which may be followed by background calibration. The same gain/skew calibration metrics may be applied to baud sampled and oversampled systems, including wideband receivers and regardless of any modulation, by applying a timing or frequency offt to non-stationary sampled signals during initial training. Skew mitigation is low latency, low power, low area, noi tolerant and scalable. Digital estimation may be implemented with accumulators and multipliers while analog calibration may be implemented with adjustable delays. DC and gain offts may be calibrated before skew calibration. The slope of the correlation function between adjacent samples may be ud to move a timing skew estimate stochastically at a low adaptive rate until the skew algorithm converges.
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申请人：Broadcom Corporation
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地址：Irvine CA US
国籍：US
代理机构：Fiala & Weaver P.L.L.C.
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