A wideband CMOS VGLNA based on single-to-differential stage and resistive attenuator for TV tuners

被引：0

作者：

韩科锋 ^{[1
]}

谈熙 ^{[1
]}

唐长文 ^{[1
]}

闵昊 ^{[1
]}

机构：

[1] State Key Laboratory of ASIC & System,Fudan University

来源：

Journal of Semiconductors | 2011年 / 32卷 / 07期

关键词：

S2D; VGLNA; TV tuner; attenuator; wideband; noise canceling;

D O I：

暂无

中图分类号：

TN715 [均衡器、衰减器（衰耗器）];

学科分类号：

080902 ;

摘要：

A wideband CMOS variable gain low noise amplifier(VGLNA) based on a single-to-differential(S2D) stage and resistive attenuator is presented for TV tuner applications.Detailed analysis of input matching,noise figure(NF) and linearity for S2D is given.A highly linear passive resistive attenuator is proposed to provide 6 dB attenuation and input matching for each gain stage.The chip was fabricated by a 0.18μm 1P6M CMOS process, and the measurements show that the VGLNA covers a gain range over 36.4 dB and achieves a maximum gain of 21.3 dB,a minimum NF of 3.0 dB,an IIP3 of 0.9 dBm and an IIP2 of 26.3 dBm at high gain mode with a power consumption less than 10 mA from a 1.8 V supply.

引用

页码：74 / 80

页数：7

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