Design Techniques for a Low-Voltage VCO With Wide Tuning Range and Low Sensitivity to Environmental Variations

Cited 37 time in webofscience Cited 0 time in scopus
  • Hit : 326
  • Download : 0
This paper presents design techniques for a low-voltage voltage-controlled oscillator (VCO) with a wide tuning range and low sensitivity to process, voltage, and temperature (PVT) variations. For wide tuning range, a switched tuning scheme is employed coupled with voltage-boosting techniques in a manner that improves the quality factor and tuning range of a switched capacitor array. To minimize the design overhead required for a robust VCO, an adaptive body-biasing technique is proposed, which relaxes the startup constraint and increases the VCO's immunity to PVT variations. The proposed VCO is implemented in 0.18-mu m CMOS technology and operates at 2.4 GHz. It achieves phase noise of -117 dBc/Hz at 1-MHz offset and a tuning range 20% while consuming 365 mu W of power. The figure-of-merit with the tuning range is -197 dBc/Hz, which is the lowest among recent state-of-the-art low-voltage VCOs.
Publisher
IEEE
Issue Date
2009-04
Language
English
Article Type
Article
Keywords

CONTROLLED OSCILLATOR; CMOS; CIRCUIT; NOISE

Citation

IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, v.57, pp.767 - 774

ISSN
0018-9480
DOI
10.1109/TMTT.2009.2015112
URI
http://hdl.handle.net/10203/98316
Appears in Collection
EE-Journal Papers(저널논문)
Files in This Item
There are no files associated with this item.
This item is cited by other documents in WoS
⊙ Detail Information in WoSⓡ Click to see webofscience_button
⊙ Cited 37 items in WoS Click to see citing articles in records_button

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0