| Citation: |
Wang Huan, Wang Zhigong, Feng Jun, Zhang Li, Li Wei. A 10GHz LC Voltage-Controlled Oscillator in 0.25μm CMOS[J]. Journal of Semiconductors, 2008, 29(3): 484-489.
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Wang H, Wang Z G, Feng J, Zhang L, Li W. A 10GHz LC Voltage-Controlled Oscillator in 0.25μm CMOS[J]. J. Semicond., 2008, 29(3): 484.
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A 10GHz LC Voltage-Controlled Oscillator in 0.25μm CMOS
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Abstract
A monolithic 10GHz LC voltage-controlled oscillator (VCO) is implemented in standard 0.25μm CMOS technology.The VCO adopts an optimized symmetric circular inductor with center-tap,an accumulation-mode MOS (A-MOS) varactor in series with a passive metal-isolator-metal capacitor (MIM-CAP) and a tail current source with an LC filter to operate with high-frequency and low-noise resulting in -103.2dBc/Hz at 1MHz offset from carrier frequency of 10.2GHz and approximately 11.5% tuning range.With a 3.3V supply voltage,the core circuit consumes 9.9mW.The chip area is 0.67mm×0.58mm.-
Keywords:
- VCO,
- LC oscillator,
- CMOS technology
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References
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Proportional views
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