Design and implementation of LC voltage controlled oscillator with low phase noise

被引：0

作者：

Chang, Changyuan ^{[1
]}

Wang, Shaoquan ^{[1
]}

Chen, Yao ^{[1
]}

Yu, Dongsheng ^{[1
]}

机构：

[1] School of Integrated Circuit, Southeast University

来源：

Dongnan Daxue Xuebao (Ziran Kexue Ban)/Journal of Southeast University (Natural Science Edition) | 2012年 / 42卷 / 06期

关键词：

CMOS(complementary metal oxide semiconductor); LC voltage controlled oscillator; Phase noise; Switch capacitance array;

D O I：

10.3969/j.issn.1001-0505.2012.06.006

中图分类号：

学科分类号：

摘要：

Based on TSMC 0.35 μm CMOS process, a fully integrated LC voltage controlled oscillator (VCO) used in phase lock loop (PLL) frequency synthesizer with low phase noise is designed and implemented. The LC VCO has a complementation cross-couple differential structure and adopts switched-capacitor technique to increase frequency tune range. Large filtering capacitance, second harmonic filtering network, switched-capacitor array and bias filter network are used to reduce phase noise. Simulation, layout design and post-simulation are completed by TSMC 0.35 μm CMOS process. The chip size is 1 285.3 μm×1 162.7 μm. Chip testing results show that the frequency of the LC VCO can be tuned from 1.558 to 2.065 GHz. The tune range is 28%. In the center oscillation frequency, the phase noise of the LC VCO can achieve -133.3 dBc/Hz at 1 MHz, and the FOM(figure of merit) is -183.3 dBc/Hz. Thus, the overall performance of the designed VCO is good.

引用

页码：1052 / 1057

页数：5

共 16 条

[1] Ali H., Lee Thomas H., Low Noise Oscillators, pp. 4-7, (1999)
[2] Li Z.B., Kenneth K.O., A low phase noise and low power multiband CMOS voltage controlled oscillator, IEEE Journal of Solid State Circuits, 40, 6, pp. 1296-1302, (2005)
[3] Fang X., Zeng J., Li B., Et al., A fully integrated differential double frequency wide tuning range CMOS LC VCO for 2.4 GHz IEEE802.15.4/ZigBee, Proceedings of 2010 IEEE International Symposium on Signals Systems and Electronics, pp. 1-4, (2010)
[4] Kim J., Shin J., Kim S., Et al., A wide-band CMOS LC VCO with linearized coarse tuning characteristics, IEEE Transactions on Circuits and Systems II: Express Briefs, 55, 5, pp. 399-403, (2008)
[5] Wang L., Parag U., Sun P., Et al., A 5.3 GHz low-phase-noise LC VCO with harmonic filtering resistor, Proceedings of 2006 IEEE International Symposium on Circuits and Systems, pp. 3237-3240, (2006)
[6] Mohamed S., Ortmanns M., Manoli Y., Design of current reuse CMOS LC VCO, Proceedings of 2008 IEEE International Conference on Electronics, Circuits and Systems, pp. 714-717, (2008)
[7] Leeson D.B., A simple model of feedback oscillator noises spectrum, Proceedings of the IEEE, 54, 2, pp. 329-330, (1966)
[8] Rael J.J., Abidi A.A., Physical processes of phase noise in differential LC oscillators, Proceedings of 2000 IEEE Custom Integrated Circuits Conference, pp. 569-572, (2000)
[9] Ali H., Lee Thomas H., Design issues in CMOS differential LC oscillators, IEEE Journal of Solid State Circuits, 34, 5, pp. 717-724, (1999)
[10] Hegazi E., Sjoland H., Abidi A.A., A filtering technique to lower LC oscillator phase noise, IEEE Journal of Solid State Circuits, 36, 12, pp. 1921-1930, (2001)

← 1 2 →