A Low Phase Noise, Wideband and Compact CMOS PLL for Use in a Heterodyne 802.15.3c Transceiver
A Low Phase Noise, Wideband and Compact CMOS PLL for Use in a Heterodyne 802.15.3c Transceiver
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DOI：
10.1109/jssc.2011.2143950
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发表时间：
2011-07-01
影响因子：
5.4
通讯作者：
Chang, Mau-Chung Frank
中科院分区：
文献类型：
--
作者：
Murphy, David;Gu, Qun Jane;Chang, Mau-Chung Frank
报道了一种低相位噪声、宽带、毫米波、整数n锁相环，能够支持802.15.3c外差收发器。锁相环可以在43.2 GHz到51.84 GHz范围内产生6个等间隔的音调，适用于F-LO = (4/5) x F-TRX的外差架构。相位噪声直接在F-LO频率测量，在整个频段内优于-97.5 dBc/Hz@1 MHz。所报告的频率合成器比现有技术更小，表现出更少的相位噪声，并且消耗更少的功率。此外，F-LO音调对应于VCO的基频，而不是更高的谐波。锁相环性能的核心是具有22.9%调谐范围的低噪声、宽带、毫米波压控振荡器的设计。使用可编程传输线作为频率调谐元件，实现了精细的离散调谐和最小化寄生。
A low phase noise, wideband, mm-wave, integer-N PLL that is capable of supporting an 802.15.3c heterodyne transceiver is reported. The PLL can generate 6 equally spaced tones from 43.2 GHz to 51.84 GHz, which is suitable for a heterodyne architecture with F-LO = (4/5) x F-TRX. Phase noise is measured directly at the F-LO frequency and is better than -97.5 dBc/Hz@1 MHz across the entire band. The reported frequency synthesizer is smaller, exhibits less phase noise, and consumes less power than prior art. In addition, the F-LO tone corresponds to the fundamental of the VCO as opposed to a higher harmonic.Central to the PLL performance is the design of a low-noise, wideband, mm-wave VCO with a 22.9% tuning range. Fine discrete tuning and minimization of parasitics is achieved using a programmable transmission line as a frequency tuning element.