Multi-Rate DEM With Mismatch-Noise Cancellation for DCOs in Digital PLLs

Multi-Rate DEM With Mismatch-Noise Cancellation for DCOs in Digital PLLs
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用于数字 PLL 中 DCO 的具有失配噪声消除功能的多速率 DEM

DOI:
10.1109/tcsi.2018.2819024
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发表时间:
2018
期刊:
IEEE Transactions on Circuits and Systems I: Regular Papers
影响因子:
--
通讯作者:
I. Galton
I. Galton
中科院分区:
--
文献类型:
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作者:
Enrique Alvarez;Christian Venerus;I. Galton

文献摘要

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相似文献

数字控制振荡器中频率控制元件之间的失配可能是数字锁相环(PLL)中相位误差的一个重要来源。本文提出了一种多速率动态元素匹配技术和一种自适应失配噪声抵消(MNC)技术来解决这一问题。这两种技术在正常的PLL操作期间在后台操作,并且MNC技术具有典型的几秒的冷启动收敛时间。
Mismatches among frequency control elements in digitally-controlled oscillators can be a significant source of phase error in digital phase-locked loops (PLLs). This paper presents a multi-rate dynamic element matching technique and an adaptive mismatch-noise cancellation (MNC) technique that work together to address this problem. The two techniques operate in background during normal PLL operation, and the MNC technique has typical cold start convergence times of a few seconds.