一种用于CMOS射频接收器的130M至1GHz数字可调谐RF lc跟踪滤波器

2008 IEEE Asian Solid-State Circuits Conference Pub Date : 2008-12-12 DOI:10.1109/ASSCC.2008.4708829

Y. Kanazawa, Y. Fujimoto, K. Iizuka

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引用次数: 2

摘要

针对宽带CMOS射频接收机中的奇谐波混频问题，研制了一种宽可调谐射频lc跟踪滤波器。该滤波器由两个级联的RLC罐组成，其中使用内置LPF的可编程变换器级。在5.6 MHz的信号频带上，IIP3为127.7 dBmuV，输入参考噪声为20.1 dBmuV。该芯片采用0.18 μ m CMOS工艺制造，占地2.8 mm2，从1.8V电源输出34-120mA。

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A 130M to 1GHz digitally tunable RF LC-tracking filter for CMOS RF receivers

A widely tunable RF LC-tracking filter is developed for tackling the odd harmonic mixing problem in wideband CMOS RF receivers. The filter is composed of two cascaded RLC tanks, where proposed programmable transconductor stages with built-in LPF are used. IIP3 of 127.7 dBmuV and input-referred noise of 20.1 dBmuV over signal band of 5.6 MHz are confirmed by measurements. The chip, fabricated in 0.18 mum CMOS process, occupies 2.8 mm2 and draws 34-120mA from a 1.8V supply.

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2008 IEEE Asian Solid-State Circuits Conference

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