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	A 1.8-V CMOS Direct-Conversion Tuner for Mobile DTV Applications
	Song, Fei ; Liao, Huailin ; Chen, Jiang ; Ye, Le ; Yang, Huaizhou ; Liu, Junhua ; Zhao, Jinshu ; Huang, Ru
	2008
关键词	AMPLIFIER
英文摘要	A 1.8-V 0.18 mu m CMOS direct-conversion Tuner for UHF band mobile digital TV applications is presented. To meet the stringent requirements of Noise Figure (NF) and IIP3, a capacitor cross-coupled (CCC) common-gate LNA and a novel high-linearity, low-flicker noise Gilbert Mixer are adopted. The LNA achieves 26dB variable gain by using digital controlled current-steering technique and a resistive attenuator. To overcome the gain roll-off at the high frequency channels, a current reuse self-biased post-LNA buffer is proposed as the interface between the VGLNA and Mixer. In addition, a fully integrated DC Offset Correction (DCOC) circuit with switchable high-pass corner frequency, is introduced to realize both low high-pass cutoff frequency and short settling time. A wideband integer-N synthesizer using an adaptive frequency calibration (AFC) of dichotomizing technique, settles less than 2001 mu s for LO generation. The tuner achieves 3.8dB NF, 0dBm IIP3@20dB LNA gain attenuation, 92dB gain dynamic range and occupies 3.45mmX 3.4mm silicon area, while drawing 59mA from 1.8-V supply.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000265155300088&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Engineering, Electrical & Electronic; CPCI-S(ISTP); 0
语种	英语
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/293461]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Song, Fei,Liao, Huailin,Chen, Jiang,et al. A 1.8-V CMOS Direct-Conversion Tuner for Mobile DTV Applications. 2008-01-01.

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