SEMICONDUCTOR INTEGRATED CIRCUITS

A 5 GHz CMOS frequency synthesizer with novel phase-switching prescaler and high-Q LC-VCO

Cao Shengguo, Yang Yuqing, Tan Xi, Yan Na and Min Hao

+ Author Affiliations

PDF

Abstract: A phase-locked loop (PLL) frequency synthesizer with a novel phase-switching prescaler and a high-Q LC voltage controlled oscillator (VCO) is presented. The phase-switching prescaler with a novel modulus control mechanism is much more robust on process variations. The Q factor of the inductor, I-MOS capacitors and varactors in the VCO are optimized. The proposed frequency synthesizer was fabricated by SMIC 0.13 μm 1P8M MMRF CMOS technology with a chip area of 1150 × 2500 μm2. When locking at 5 GHz, the current consumption is 15 mA from a supply voltage of 1.2 V and the measured phase noise at a 1 MHz offset is –122.45 dBc/Hz.

Key words: PLL frequency synthesizer

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
  • Search

    Advanced Search >>

    GET CITATION

    shu

    Export: BibTex EndNote

    Article Metrics

    Article views: 3523 Times PDF downloads: 2762 Times Cited by: 0 Times

    History

    Received: 18 August 2015 Revised: 25 February 2011 Online: Published: 01 August 2011

    Catalog

      Email This Article

      User name:
      Email:*请输入正确邮箱
      Code:*验证码错误
      Cao Shengguo, Yang Yuqing, Tan Xi, Yan Na, Min Hao. A 5 GHz CMOS frequency synthesizer with novel phase-switching prescaler and high-Q LC-VCO[J]. Journal of Semiconductors, 2011, 32(8): 085006. doi: 10.1088/1674-4926/32/8/085006 Cao S G, Yang Y Q, Tan X, Yan N, Min H. A 5 GHz CMOS frequency synthesizer with novel phase-switching prescaler and high-Q LC-VCO[J]. J. Semicond., 2011, 32(8): 085006. doi: 10.1088/1674-4926/32/8/085006.Export: BibTex EndNote
      Citation:
      Cao Shengguo, Yang Yuqing, Tan Xi, Yan Na, Min Hao. A 5 GHz CMOS frequency synthesizer with novel phase-switching prescaler and high-Q LC-VCO[J]. Journal of Semiconductors, 2011, 32(8): 085006. doi: 10.1088/1674-4926/32/8/085006

      Cao S G, Yang Y Q, Tan X, Yan N, Min H. A 5 GHz CMOS frequency synthesizer with novel phase-switching prescaler and high-Q LC-VCO[J]. J. Semicond., 2011, 32(8): 085006. doi: 10.1088/1674-4926/32/8/085006.
      Export: BibTex EndNote

      A 5 GHz CMOS frequency synthesizer with novel phase-switching prescaler and high-Q LC-VCO

      doi: 10.1088/1674-4926/32/8/085006
      Funds:

      The National High Technology Research and Development Program of China (863 Program)

      • Received Date: 2015-08-18
      • Accepted Date: 2011-02-10
      • Revised Date: 2011-02-25
      • Published Date: 2011-07-19

      Catalog

        /

        DownLoad:  Full-Size Img  PowerPoint
        Return
        Return