A PVT-robust feedback class-C VCO using an oscillation swing enhancement technique
A PVT-robust feedback class-C VCO using an oscillation swing enhancement technique
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DOI：
10.1109/aspdac.2012.6165019
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发表时间：
2012-03
期刊：
影响因子：
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通讯作者：
W. Deng;K. Okada;A. Matsuzawa
中科院分区：
文献类型：
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作者：
W. Deng;K. Okada;A. Matsuzawa
提出了一种具有pvt鲁棒性和增强振荡摆幅的反馈c类压控振荡器。所提出的VCO作为差分LC-VCO启动振荡，以实现鲁棒启动，并在稳定状态下自动适应幅度增强的c类VCO，以降低相位噪声。该VCO采用0.18μm CMOS工艺实现。在室温下测量的相位噪声为-125 dBc/Hz @ 1MHz偏移，功耗为3.4 mw，载波频率为4.84 ghz。性能因数为-193 dBc/Hz。
This paper presents a feedback class-C VCO with PVT-robustness and enhanced oscillation swing. The proposed VCO starts oscillation as a differential LC-VCO for robust startup, and automatically adapts to an amplitude-enhanced class-C VCO in steady-state for lower phase noise. The proposed VCO is implemented in a 0.18μm CMOS process. The measured phase noise at room temperature is -125 dBc/Hz @ 1MHz offset with a power dissipation of 3.4-mW, from a carrier frequency of 4.84-GHz. The figure-of-merit is -193 dBc/Hz.