Referenced Items are not available for this document.
Dual-Band
A dual-band LC voltage-controlled oscillator (VCO) architecture suitable for GSM/PCS/DCS applications is presented. The VCO utilizes a fourth-order resonance tank and avoids quality-factor-deteriorating switches. The paper outlines the design tradeoffs and the VCO when using a fourth-order resonator. The 0.8-GHz/1.8-GHz test chip was fabricated in the 0.5-mum IBM-5AM SiGe process and has achieved phase noise of -134 dBc/Hz at a 1-MHz frequency offset from the carrier, with 56-MHz and 121-MHz tuning ranges in the corresponding bands. The VCO core consumes 15 mW from a 2.5-V power supply
Published in:
Circuits and Systems II: Express Briefs, IEEE Transactions on
(Volume:54
,
Issue:
3
)
Date of Publication: March 2007
- Page(s):
- 277 - 281
- ISSN :
- 1549-7747
- INSPEC Accession Number:
- 9374515
- Digital Object Identifier :
- 10.1109/TCSII.2006.888732
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 19 March 2007
- Issue Date :
- March 2007
- Sponsored by :
- IEEE Circuits and Systems Society
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