闭环杂音减少自愈频率合成器

2011 IEEE Radio Frequency Integrated Circuits Symposium Pub Date : 2011-06-05 DOI:10.1109/RFIC.2011.5940704

F. Bohn, K. Dasgupta, A. Hajimiri

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引用次数: 11

摘要

在8-12 GHz CMOS合成器中使用片上杂散音检测和校正，可自动降低不同偏移频率下的杂散输出音，最高可达20dB。采用同步检测，灵敏度仅受检测时间的限制。所提出的方法一般适用于频率合成器和锁相环的各种应用。

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Closed-loop spurious tone reduction for self-healing frequency synthesizers

On-chip spurious tone detection and correction in an 8–12 GHz CMOS synthesizer is used to automatically reduce spurious output tones at different offset frequencies by up to 20dB. Using synchronous detection, sensitivity is limited by detection time only. The presented methods are generally applicable to frequency synthesizers and phased-locked loops in various applications.

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2011 IEEE Radio Frequency Integrated Circuits Symposium

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