A 0.13 μm CMOS 90 dB variable gain pre-power amplifier using robust linear-in-dB attenuator

2008 IEEE Radio Frequency Integrated Circuits Symposium Pub Date : 2008-07-15 DOI:10.1109/RFIC.2008.4561527

Y. Araki, T. Hashimoto, S. Otaka

引用次数: 5

Abstract

A 0.13um CMOS pre-power amplifier with 90dB gain range is fabricated. The pre-power amplifier consists of 4 variable attenuators and 3 fixed gain amplifiers, where the proposed attenuator suppresses the attenuation variation due to Vth variation. The pre-power amplifier outputs +4dBm with 75mW and -80dBm with 65mW. The ACPR is -48dBc and the EVM is less than 1.0% at Pout = +4dBm. The attenuation variation of less than +/-5dB is achieved.

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一种0.13 μm CMOS 90 dB可变增益前置功率放大器，采用鲁棒的dB内线性衰减器

制作了增益范围为90dB的0.13um CMOS前置功率放大器。前置功率放大器由4个可变衰减器和3个固定增益放大器组成，其中所提出的衰减器抑制了由于Vth变化引起的衰减变化。前置功率放大器输出+4dBm 75mW和-80dBm 65mW。在Pout = +4dBm时，ACPR为-48dBc, EVM小于1.0%。衰减变化小于+/-5dB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2008 IEEE Radio Frequency Integrated Circuits Symposium

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