J. Semicond. > 2008, Volume 29 > Issue 11 > 2238-2244

PAPERS

Design of an Active-RC Low-Pass Filter with Accurate Tuning Architecture

Chen Fangxiong, Lin Min, Chen Bei, Jia Hailong, Shi Yin and Dai Forster

+ Author Affiliations

PDF

Abstract: An active-RC low-pass filter of 5MHz cutoff frequency with a tuning architecture is proposed.It is implemented in 0.18μm standard CMOS technology.The accuracy of the tuning system is improved to be within (-1.24%,+2.16%) in measurement.The chip area of the tuning system is only a quarter of that of the main-filter.After tuning is completed,the tuning system will be turned off automatically to save power and to avoid interference.The in-band 3rd order harmonic input intercept point (IIP3) is larger than 16.1dBm,with 50Ω as the source impedance.The input referred noise is about 36μVrms.The measured group delay variation of the filter between 3 and 5MHz is only 24ns,and the filter power consumption is 3.6mW.This filter with the tuning system is realized easily and can be used in many wireless low-IF receiver applications,such as global position systems (GPS),global system for mobile communications (GSM) and code division multiple access (CDMA) chips.

Key words: CMOS circuit designauto tuningactive RC filterwireless system

  • Search

    Advanced Search >>

    Article Metrics

    Article views: 3590 Times PDF downloads: 1245 Times Cited by: 0 Times

    History

    Received: 18 August 2015 Revised: 27 July 2008 Online: Published: 01 November 2008

    Catalog

      Email This Article

      User name:
      Email:*请输入正确邮箱
      Code:*验证码错误
      Chen Fangxiong, Lin Min, Chen Bei, Jia Hailong, Shi Yin, Dai Forster. Design of an Active-RC Low-Pass Filter with Accurate Tuning Architecture[J]. Journal of Semiconductors, 2008, In Press. Chen F X, Lin M, Chen B, Jia H L, Shi Y, Dai F. Design of an Active-RC Low-Pass Filter with Accurate Tuning Architecture[J]. J. Semicond., 2008, 29(11): 2238.Export: BibTex EndNote
      Citation:
      Chen Fangxiong, Lin Min, Chen Bei, Jia Hailong, Shi Yin, Dai Forster. Design of an Active-RC Low-Pass Filter with Accurate Tuning Architecture[J]. Journal of Semiconductors, 2008, In Press.

      Chen F X, Lin M, Chen B, Jia H L, Shi Y, Dai F. Design of an Active-RC Low-Pass Filter with Accurate Tuning Architecture[J]. J. Semicond., 2008, 29(11): 2238.
      Export: BibTex EndNote

      Design of an Active-RC Low-Pass Filter with Accurate Tuning Architecture

      • Received Date: 2015-08-18
      • Accepted Date: 2008-04-08
      • Revised Date: 2008-07-27
      • Published Date: 2008-11-11

      Catalog

        /

        DownLoad:  Full-Size Img  PowerPoint
        Return
        Return