| 频率综合器中电荷泵相位噪声参数模型 |
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| 引用本文： | 何捷. 频率综合器中电荷泵相位噪声参数模型[J]. 绍兴文理学院学报, 2010, 0(1) |
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| 作者姓名： | 何捷 |
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| 作者单位： | 恩法半导体有限公司; |
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| 摘 要： | 在深亚微米互补金属氧化物半导体工艺制造的频率综合器中,电荷泵产生的噪声成为输出频率信号相位噪声的重要来源.以往用于电荷泵噪声的导通比估算模型比较粗糙,已经无法满足设计低噪声频率综合器的需要,通过引入电荷泵导通时间,提出了频率综合器中电荷泵的采样噪声等效模型,能更加精确地估计电荷泵噪声对频率综合器输出相位噪声的贡献.本文提出的电荷泵噪声模型为设计频率综合器提供了仿真相位噪声更为准确的方法.
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| 关 键 词： | 频率综合器 相位噪声 电荷泵 采样噪声等效模型 |
Charge-pump Phase-noise Model in Frequency Synthesizer |
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| He Jie. Charge-pump Phase-noise Model in Frequency Synthesizer[J]. Journal of Shaoxing College of Arts and Sciences, 2010, 0(1) |
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| Authors: | He Jie |
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| Affiliation: | He Jie(ST-Ericsson Semiconductor Co.Ltd.,Shanghai,200241) |
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| Abstract: | In the frequency synthesizer with deep sub-micron complementary metal oxide semiconductor(CMOS) technology,the noise of a charge pump becomes increasingly important,hence a major contribution to the phase noise of output signal.The traditional noise model for a charge pump is such that it cannot meet the design of a low-noise frequency synthesizer.This paper analyzes the sampling noise equivalent model of a charge pump in frequency synthesizer with the new parameter-charge pump on-time.The proposed model an... |
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| Keywords: | frequency synthesizer phase noise charge pump sampling noise equivalent model |
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