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J. Semicond. > 2008, Volume 29?>?Issue 3?> 484-489

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A 10GHz LC Voltage-Controlled Oscillator in 0.25μm CMOS

Wang Huan, Wang Zhigong, Feng Jun, Zhang Li and Li Wei

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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.

Key words: VCO, LC oscillator, CMOS technology

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    Received: 18 August 2015 Revised: 19 October 2007 Online: Published: 01 March 2008

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      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. ****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.
      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. ****
      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.

      A 10GHz LC Voltage-Controlled Oscillator in 0.25μm CMOS

      • Institute of RF- & OE-ICs,Southeast University,Nanjing 210096,China

      • Institute of RF- & OE-ICs,Southeast University,Nanjing 210097,China

      • Institute of RF- & OE-ICs,Southeast University,Nanjing 210098,China

      • Institute of RF- & OE-ICs,Southeast University,Nanjing 210099,China

      • Institute of RF- & OE-ICs,Southeast University,Nanjing 210100,China

      • Received Date: 2015-08-18
      • Accepted Date: 2007-08-11
      • Revised Date: 2007-10-19
      • Published Date: 2008-02-28

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