一个5.8GHz基于lc的数字控制振荡器，频率分辨率为20kHz，调谐范围为37%

2009 Proceedings of ESSCIRC Pub Date : 2009-11-10 DOI:10.1109/ESSCIRC.2009.5326004

Rachid El Waffaoui, Simon Lee

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引用次数: 2

摘要

本文报道了一种基于lc的65nm CMOS数字控制振荡器(DCO)，它是数字锁相环的关键元件，具有更高的频率分辨率和更大的调谐范围。它的中心频率为5.8GHz，调谐范围为1800MHz。最佳频率步长约为20kHz。在4.9GHz的100kHz频偏处，振荡器的相位噪声为- 100dBc/Hz。DCO从1.8V电源中吸取4mA电流。

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A 5.8GHz LC-based digitally controlled oscillator with 20kHz frequency resolution and 37 % tuning range

This paper reports an LC-based digitally controlled oscillator (DCO) in 65nm CMOS, key component in a digital phase locked loop, with an enhanced frequency resolution and extended tuning range. It has a center frequency of 5.8GHz and a tuning range of 1800MHz. The finest frequency step is about 20kHz. The oscillator exhibits a phase noise of −100dBc/Hz at 100kHz frequency offset from 4.9GHz. The DCO draws 4mA current from 1.8V supply.

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2009 Proceedings of ESSCIRC

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