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A Reconfigurable Dcs1800/w-cdma Lna: Design And Implementation Issues

机译:可重新配置的Dcs1800 / w-cdma Lna:设计和实现问题

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摘要

The authors present in this article a dual-standard dual-mode low-noise amplifier (LNA) for DCS1800/W-CDMA-FDD applications. To save die area compared to conventional parallel LNAs, the authors have employed an alternative circuit configuration. It consists of sharing the most die consuming elements (inductances) in both operation standards, enabling a more compact solution. The standard selection is performed through a bias scheme (MOS switches) that allows alternating between the two involved standards. The LNA die area is 1.0 × 1.2 mm~2 and it consumes 6.8 mW (3.8 mA under 1.8 V), including bias circuitry.
机译:本文的作者介绍了一种适用于DCS1800 / W-CDMA-FDD应用的双标准双模式低噪声放大器(LNA)。与传统的并行LNA相比,为了节省芯片面积,作者采用了另一种电路配置。它包含共享两个操作标准中最消耗芯片的元素(电感),从而实现更紧凑的解决方案。标准选择是通过偏置方案(MOS开关)执行的,该方案允许在两个涉及的标准之间进行交替。 LNA芯片面积为1.0×1.2 mm〜2,功耗为6.8 mW(在1.8 V下为3.8 mA),包括偏置电路。

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