用于电视调谐器的高动态范围全有源45-240MHz可调谐RF带通滤波器

2011 Proceedings of the ESSCIRC (ESSCIRC) Pub Date : 2011-10-13 DOI:10.1109/ESSCIRC.2011.6044970

S. Jolivet, S. Amiot, Olivier Crand, S. Bertrand, B. Jarry, J. Lintignat

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引用次数: 0

摘要

提出了一种全有源可调谐射频带通滤波器。它采用了一种新颖的正反馈RC“劳赫”结构，基于高动态范围的宽带放大器。该滤波器采用BiCMOS 0.25μm工艺设计，IIP3要求为10dBm，噪声系数为15dB。在45至240MHz范围内获得的质量因子为3，保证了电视硅调谐器在VHF频段的两个以上倍频上所需要的选择性的完全集成。

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A high dynamic range fully-active 45–240MHz tunable RF bandpass filter for TV tuners

A fully-active tunable RF bandpass filter is presented. It uses a novel positive feedback RC “Rauch” structure, based on a wideband amplifier for high dynamic range purposes. The filter, designed in a BiCMOS 0.25μm technology, exhibits a 10dBm IIP3 requirement and a 15dB noise figure. The quality factor of 3 obtained from 45 to 240MHz guarantees the required full integration of the selectivity for TV silicon tuners over more than two octaves of the VHF band.

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2011 Proceedings of the ESSCIRC (ESSCIRC)

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