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A Low Power, Wide Tuning Range VCO with Two-Step Negative-Gm Calibration Loop  

Kim, Sang-Woo (Department of Electronic Engineering, Konkuk University)
Park, Joon-Sung (Department of Electronic Engineering, Konkuk University)
Pu, Young-Gun (Department of Electronic Engineering, Konkuk University)
Hur, Jeong (Department of Electronic Engineering, Konkuk University)
Lee, Kang-Yoon (Department of Electronic Engineering, Konkuk University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.47, no.2, 2010 , pp. 87-93 More about this Journal
Abstract
This paper presents a low-power, wide tuning range VCO with automatic two-step negative-Gm calibration loop to compensate for the process, voltage and temperature variation. To cover the wide tuning range, digital automatic negative-Gm tuning loop and analog automatic amplitude calibration loop are used. Adaptive body biasing (ABB) technique is also adopted to minimize the power consumption by lowering the threshold voltage of transistors in the negative-Gm core. The power consumption is 2 mA to 6mA from a 1.2 V supply. The VCO tuning range is 2.65 GHz, from 2.35 GHz to 5 GHz. And the phase noise is -117 dBc/Hz at the 1 MHz offset when the center frequency is 3.2 GHz.
Keywords
low power; wide tuning range; amplitude calibration loop; negative-Gm tuning; voltage controlled oscillator;
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1 Miyashita D, Ishikuro H, Kousai S, Kobayashi H, Majima H, Agawa K, Hamada M,"A phase noise minimization of CMOS VCOs over wide tuning range and large PVT variations", Custom Integrated Circuits Conference, 2005. Proceedings of the IEEE 2005, Page(s):583 -586, 18-21 Sept. 2005.
2 C.-W. Yao and A. N. W. Jr., "A phase-noise reduction technique for quadrature LC-VCO with phase-to-amplitude noise conversion", in IEEE Int. Solid-State Circuits Conf. (ISSCC) Tech. Dig., pp. 196-197., Feb. 2006.
3 Seok-Ju Yun, So-Bong Shin, Hyung-Chul Choi, Sang-Gug Lee, "1mW Current-Reuse CMOS Differential LC-VCO with Low Phase Noise", Solid-State Circuits Conference, 2005. Digest of Technical Papers. ISSCC. 2005, Page(s):540 -616 Vol. 1, IEEE International 10-10 Feb. 2005.
4 Dongmin Park and Seonghwan Cho, "An Adaptive Body-Biased VCO with Voltage-Boosted Switched Tuning in 0.5-V Supply", Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European, Page(s):444 -447, Sept. 2006.
5 Z. Li and K. K. O., "A low-phase-noise and low-power multiband CMOS voltage-controlled oscillator", IEEE J. Solid-State Circuits, vol. 40, pp.1296-1302, June 2005.   DOI
6 Casha Owen, Grech Ivan, Micallef Joseph, Gatt Edward, "Design of a 1.2 V Low Phase Noise 1.6 GHz CMOS Buffered Quadrature Output VCO with Automatic Amplitude Control", Electronics, Circuits and Systems, 2006. ICECS '06. 13th IEEE International Conference.
7 Hajimiri A, Lee T.H., "Design issues in CMOS differential LC oscillators", Solid-State Circuits, IEEE Journal of, Volume 34, Issue 5, Page(s):717 -724, May 1999.   DOI   ScienceOn