| 整数型全数字锁相环的非线性量化效应及其对相位噪声的影响 |
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| 引用本文： | 沈珏,Fredrik Jonsson,郑立荣,俞军.整数型全数字锁相环的非线性量化效应及其对相位噪声的影响[J].复旦学报(自然科学版),2011(4):462-469. |
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| 作者姓名： | 沈珏 Fredrik Jonsson 郑立荣 俞军 |
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| 作者单位： | 复旦大学专用集成电路与系统国家重点实验室;iPack Vinn Excellence Center;Royal Institute of Technology(KTH); |
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| 摘 要： | 提出并验证了一种全数字锁相环（ADPLL）的非线性相位域模型,基于此模型说明了整数型ADPLL进入非线性阶段后,相位差量化器产生的量化误差概率密度分布不再符合现有线性模型条件,线性模型的相位噪声预测公式不再准确.经Matlab与Verilog行为级仿真,验证并解释了整数型ADPLL在非线性阶段呈现的带宽扩展和带内相位噪...
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| 关 键 词： | 全数字锁相环 量化步长 非线性量化效应 非线性PLL噪声模型 相位噪声 Matlab建模 Verilog行为级建模 |
Non-linear Quantization Effect and Its Impact on Phase Noise of Integer-N ALL Digital Phase Locked-Loop |
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| SHEN Jue,JONSSON Fredrik,ZHENG Li-rong,YU Jun, Kista-Stockholm,Sweden.Non-linear Quantization Effect and Its Impact on Phase Noise of Integer-N ALL Digital Phase Locked-Loop[J].Journal of Fudan University(Natural Science),2011(4):462-469. |
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| Authors: | SHEN Jue JONSSON Fredrik ZHENG Li-rong YU Jun Kista-Stockholm Sweden |
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| Institution: | SHEN Jue1,2,JONSSON Fredrik2,ZHENG Li-rong2,YU Jun1(1.State Key Laboratory ASIC and System,Fudan University,Shanghai 201203,China,2.iPack Vinn Excellence Center,Royal Institute of Technology(KTH),16440 Kista-Stockholm,Sweden) |
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| Abstract: | A non-linear phase domain model for all digital phase-locked loop(ADPLL) has been established and validated in this paper.Corresponding analysis has shown that ADPLL phase noise prediction derived from traditional linear quantization model is inaccurate in non-linear regime because its probability density of quantization errors do not meet the premised assumption of linear model.Bandwidth expansion and in-band phase noise decrease of integer-N ADPLL have been demonstrated and explained by Matlab and Verilog... |
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| Keywords: | ADPLL quantization step non-linear quantization effect non-linear PLL noise model phase noise Matlab modeling Verilog behavior modeling |
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