Investigating the effects of the supply voltage on the tuning range of a 10-GHz VCO in 0.18-μm CMOS technology
✍ Scribed by A. Cabuk; K. S. Yeo; J. G. Ma; M. A. Do
- Publisher
- John Wiley and Sons
- Year
- 2004
- Tongue
- English
- Weight
- 132 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
The design of a 10‐GHz voltage‐controlled oscillator (VCO) for synchronous optical network (SONET) applications is presented in this paper. The circuit is fabricated in 0.18‐μm RF CMOS process and it has a phase noise of −95 dBc/Hz at 1‐MHz offset and a very low power consumption of 2.5 mW from a 1.8‐V supply, excluding the output buffers. The effect of supply voltage on the VCO tuning range and the ways to optimize VCO operation in the SONET system are also investigated. © 2004 Wiley Periodicals, Inc. Microwave Opt Technol Lett 40: 448–451, 2004; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20002