ABSTRACT
This paper presents the design of a wide band two-stage CMOS voltage-controlled ring oscillator based on the Maneatis cell. The VCO is designed for a frequency synthesizer module that generates local oscillation (LO) frequencies over a large bandwidth, targeting a multi-band acquisition system. The goal is a wide operating frequency tuning range of 400MHz - 1.4GHz in the VCO with low power consumption, -80 dBc/Hz@600KHz phase-noise performance and a good linearity for the frequency and control voltage characteristics. Simulation results verify the theoretical development and measurement results validate the design. The symmetric load transistor operation region controls the frequency behavior achieved by the VCO, which shows a monotonic relation with the control voltage when the loads are operated in saturation. The prototype chip was fabricated using a 0.18μm IBM CMOS technology.
- W. F. Egan, "Frequency Synthesis by Phase Lock," New York: Wiley, 1981.Google Scholar
- K. Irie, H. Matsui, T. Endo, K. Watanabe, T. Yamawaki, M. Kokubo, and J. Hildersley, "A 2.7-V GSM RF transceiver IC," in ISSCC Dig. Tech. Papers, San Francisco, CA, Feb. 1997, pp. 302--303.Google Scholar
- S. Heinen, K. Hadjizada, U. Matter, W. Geppert, T. Volker, S. Weber, S. Beyer, J. Fenk, and E. Matschke, "A 2.7-V 2.5-GHz bipolar chipset for digital wireless communication," in ISSCC Dig. Tech. Papers, San Francisco, CA, Feb. 1997, pp. 306--307.Google Scholar
- G. C. Dawe, J.--M. Mourant, and A. P. Brokaw, "A 2.7-V DECT RF transceiver with integrated VCO," in ISSCC Dig. Tech. Papers, San Francisco, CA, Feb. 1997, pp. 308--309.Google Scholar
- R. G. Meyer, W. D. Mack, and J. J. Hageraats, "A 2.5-GHz BiCMOS transceiver for wireless LAN," in ISSCC Dig. Tech. Papers, San Francisco, CA, Feb. 1997, pp. 310--311.Google Scholar
- E. Fabris, L. Carro, S. Bampi, An Analog Signal Interface with Constant Performance for SOCs. Proceedings of ISCAS 2003, vol. 1, pp: 773--776, 2003.Google Scholar
- E. Wang and R. Harjani, "Partial Positive Feedback for gain Enhancement of Low-Power CMOS OTAs", Analog Integrated Circuits and Signal Processing, 8, pp21--35, 1995. Google ScholarDigital Library
- J. Maneatis and M. Horowitz, "Precise delay generation using coupled oscillators," IEEE J. Solid-State Circuits, vol. 28, No. 12, pp. 1273--1282, Dec 1992.Google ScholarCross Ref
- F. Silveira, D. Flandre, P. G. A. Jespers. A gm/ID Based Methodology for the Design of CMOS Analog Circuits and Its Application to the Synthesis of a Silicon-on-Insulator Micropower OTA. IEEE Journal of Solid-State Circuits, vol. 31, no. 9, September 1996.Google ScholarCross Ref
- A. Abidi, "Phase noise and jitter in CMOS ring oscillators," IEEE J. Solid-State Circuits, v. 41, n. 8, pp. 1803--1816, Aug 2006.Google ScholarCross Ref
Index Terms
- A wide band CMOS differential voltage-controlled ring oscillator
Recommendations
Ka-band frequency synthesizer involving a varactorless LC-type voltage-controlled oscillator and phase rotation
This paper discusses the design and fabrication of a high-frequency wide-range frequency synthesizer based on a phase locked loop (PLL), varactorless LC-type voltage-controlled oscillator, and push-push frequency doubler. In addition, a high-speed ...
A Temperature Compensated CMOS Ring Oscillator for Wireless Sensing Applications
This paper presents a CMOS voltage controlled ring oscillator (VCO) with temperature compensation circuit suitable for low-cost and low-power MEMS gas sensor. This compensated ring oscillator is dedicated to Chopper Stabilized CMOS Amplifier (CHS-A). To ...
A 1-V 4-GHz wide tuning range voltage-controlled ring oscillator in 0.18µm CMOS
A new differential delay cell with complementary current control to extend the control voltage range as well as the operation frequency is proposed for low voltage and wide tuning range voltage-controlled ring oscillator (VCRO). The complementary ...
Comments