A -119.2 dBc/Hz at 1 MHz, 1.5 mW, fully integrated, 2.5-GHz, CMOS VCO using helical inductors
- 10 November 2003
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Microwave and Wireless Components Letters
- Vol. 13 (11) , 457-459
- https://doi.org/10.1109/LMWC.2003.819382
Abstract
This letter presents an implementation to reduce area occupation in designing voltage-controlled oscillators (VCOs) using a filtering technique. We applied a helical inductor to the noise filter in a 2.5-GHz CMOS VCO to reduce area occupation. Because a helical inductor has less area occupation, a small silicon area was achieved. This VCO operates in the 2.5-GHz band with power consumption of 1.5 mW and phase noise of -119.2 dBc/Hz at 1-MHz. Our VCO displays an excellent performance of phase noise in relation to power consumption.Keywords
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