Referenced Items are not available for this document.
Voltage controlled oscillators (VCOs) used in portable wireless communications applications, such as cellular telephony, are required to achieve low phase-noise levels while consuming minimal power. This paper presents the design challenges of a VCO with automatic amplitude control, which operates in the 300 MHz to 1.2 GHz frequency range using different external resonators. The VCO phase noise level is -106 dBc/Hz at 100-KHz offset from an 800-MHz carrier, and it consumes 1.6 mA from a 2.7-V power supply. An extensive phase-noise analysis is employed for this VCO design in order to identify the most important noise sources in the circuit and to find the optimum tradeoff between noise performance and power consumption
Published in:
Solid-State Circuits, IEEE Journal of
(Volume:34
,
Issue:
6
)
Date of Publication: Jun 1999
- Page(s):
- 761 - 771
- ISSN :
- 0018-9200
- INSPEC Accession Number:
- 6278962
- Digital Object Identifier :
- 10.1109/4.766810
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Jun 1999
- Sponsored by :
- IEEE Solid-State Circuits Society
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