基于全局保护环的0.13 μm RFCMOS技术中LNA数字噪声耦合抑制

2008 IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems Pub Date : 2008-02-01 DOI:10.1109/SMIC.2008.58

Seungyong Lee, Kihan Kim, Taehyoun Oh, I. Song, Hyungcheol Shin, Moon-Ho Kim, J. Rieh

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引用次数: 2

摘要

随着SoC方法的出现，数字和RF/模拟的片上集成变得越来越流行，通过衬底对噪声敏感的RF和模拟电路上的数字噪声耦合继续成为一个关键问题。本文从噪声系数的角度研究了0.13 μ m RFCMOS技术中数字噪声耦合对5.8 ghz LNA的影响。比较了所应用的数字信号在不同幅度和时钟频率下的噪声系数退化情况。在此基础上，比较了不同保护环偏置方案对LNA噪声耦合的抑制效果。

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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Suppression of Digital Noise Coupling on LNA in 0.13-μm RFCMOS Technology by Global Guard Rings

Digital noise coupling on the noise-sensitive RF and analog circuits through substrate continues to grow as a critical issue as the on-chip integration of digital and RF/analog becomes increasingly popular with the advent of SoC approach. In this work, the effect of digital noise coupling on a 5.8-GHz LNA in 0.13 mum RFCMOS technology was investigated in terms of the noise figure. The noise figure degradation was compared for various magnitudes and clock frequencies of the digital signal applied. Further, the suppression of the noise coupling on the LNA by the global guard ring was demonstrated and compared for various guard ring bias schemes.

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2008 IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems

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