Premium
Investigating the effects of the supply voltage on the tuning range of a 10‐GHz VCO in 0.18‐μm CMOS technology
Author(s) -
Cabuk A.,
Yeo K. S.,
Ma J. G.,
Do M. A.
Publication year - 2004
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.20002
Subject(s) - voltage controlled oscillator , synchronous optical networking , phase noise , dbc , cmos , electrical engineering , microwave , offset (computer science) , voltage , varicap , engineering , electronic engineering , power consumption , materials science , power (physics) , telecommunications , computer science , physics , electrode , quantum mechanics , capacitance , programming language
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