| 新型全集成CMOS射频接收器低噪声电源系统 |
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| 引用本文： | 欧阳翔,毛毳,陈东坡.新型全集成CMOS射频接收器低噪声电源系统[J].电子测量技术,2009(1):21-23. |
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| 作者姓名： | 欧阳翔 毛毳 陈东坡 |
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| 作者单位： | 上海交通大学微电子学院,上海,200240 |
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| 摘 要： | 针对CMOS射频接收器芯片，提出了一种新型全集成电源系统方案，相对于传统低压差线性稳压器（LDO）电源，噪声性能显著提高。在对片内模块电源域合理划分的基础上，设计了低噪声的新型电压源取代传统的带隙基准源（Bandgap）作为LDO提供参考电压，并通过对参考电压值巧妙设计，避免了使用LDO电阻反馈网络来调节输出电压，进一步减小了电阻引入的噪声。结合数字校准电路，本系统可以为片内各电路提供准确的电源电压。该设计在Smic0．18m工艺下后真结果表明，在100kHz处，新型参考电压源输出噪声为16．38nV／√Hz，片内电源输出噪声仅为21．28nV/√Hz。
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| 关 键 词： | 电源系统 低噪声 射频接收器 低噪声电压源 |
Novel fully integrated CMOS power system of RF receiver |
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| Ouyang Xiang,Mao Cui,Chen Dongbo.Novel fully integrated CMOS power system of RF receiver[J].Electronic Measurement Technology,2009(1):21-23. |
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| Authors: | Ouyang Xiang Mao Cui Chen Dongbo |
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| Affiliation: | School of Microelectronics;Shanghai Jiao Tong University;Shanghai 200240 |
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| Abstract: | Based on CMOS RF receiver chip,a novel fully integrated power supply system was proposed,with much better noise performance compared to the traditional LDO power supply.In addition to the reasonable partition of the power domain,a low noise voltage reference,rather than traditional bandgap,was designed to server as the reference voltage of LDO.The smart design of the value of reference voltage avoids the use of resistance feedback network of LDO,and further reduces the noise introduced by resistor.Combined ... |
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| Keywords: | power system low noise RF receiver low noise voltage |
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