Design of Low Phase Noise Cross-coupled VCO in 90nm CMOS Technology
Abstract
A 2.5GHz low phase noise cross-coupled Voltage Controlled Oscillator (VCO) realized in 90nm CMOS technology is presented. High Q and low Q inductors are used in the design. The power consumption of the VCO is 25mW with the low Q inductor and 8.52mW with the high Q inductor. The tuning range for the two different designs is same, which is 13.2%. The phase noise of the two different designs are both below -120dBc/Hz at 1MHz offset frequency when the frequency of oscillation is 2.5GHz.
Fields of Study & Subjects
Semiconductor Lasers and Optical Devices
Radio Frequency Integrated Circuit Design
Advancements in PLL and VCO Technologies
Publication details
- Journal / source
- IMAPSource Proceedings
- Volume
- 2009
- Issue
- Symposium
- Pages
- 703–705
- Publication date
- 22 June 2026
- Language
- EN