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一阶电流模式对数域滤波器的设计 被引量：4

The Design of First-Order Current-Mode Log-Domain Filter
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摘要 提出由传输函数直接设计电流模式低通对数域滤波器的方法,实现了电流模式一阶低通对数域滤波器.并根据一阶低通、高通和全通滤波器之间的结构关系,设计出具有多输出功能的一阶对数域滤波器,该滤波器结构简单,PSPICE仿真表明,它具有良好的频率响应特性,可以实现低电压工作,且能通过改变外部电流调节截止频率. This paper proposes a design method of current-mode lowpass log-domain filter, which is derived from the transfer function. The first-order one is implemented. Based on the structure relative a- mong first-order lowpass, highpass, and allpass filter, we design the log-domain first-order multifunction filter. The proposed filter has a simple structure. PSPICE simulations show that it has good frequency response, and it can be operated at low voltage and electronically tuned by changing an external current.
作者 杨红姣 曾以成
机构地区 湘潭大学材料与光电物理学院
出处 《湘潭大学自然科学学报》 CAS CSCD 北大核心 2008年第1期126-130,共5页 Natural Science Journal of Xiangtan University
基金 国家自然科学基金项目(60772015) 湘潭大学交叉项目(KL1054/Z10054)资助
关键词 对数域滤波器 跨导线性单元 传输函数 Log-domain filter Translinear cell Transfer Function
分类号 TN713.8 [电子电信—电路与系统]
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参考文献9

  • 1ADAMS R W. Filtering in the log domain[C]// 63rd AES Conf, CA. Los Angeles. 1979:1 470.
  • 2FREY D R . Log-domain filtering: An approach to current-mode filtering[J]. Proc Inst Elect Eng, 1993,140(6): 406-416.
  • 3FREY D R. Exponential state--space filters: A generic current-mode design strategy[J]. IEEE Trans on Circuits and Systems- I: Fundamental Theory and Application, 1996,43:34-42.
  • 4MOURAD N EI-Gamal. A 1.2V N-P-N_only integrator for log-domain filtering[J]. IEEE Transactions on Circuits and Systems- Ⅱ : Analog and Digital Signal Processing, 2002,49(4) :257-265.
  • 5COSTAS Psychalinos, SPIRIDON Vlassis. On the exact realization of log-domain elliptic filters using the signal flow graph approach[J]. IEEE Transactions on Circuits and Systems- Ⅱ : Analog and Digital Signal Processing, 2002,49(12) :770-774.
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  • 7DOUGLAS Prerry, GORDON W Roberts. The design of log-domain filters based on the operational simulation of IC Ladders[J]. IEEE Transactions on Circuits and Systems-Ⅱ : Analog and Digital Signal Processing, 1996,43(11):763-774.
  • 8ZHANG Xuguang , WALID Mekawi, EZZ I. El-masry. leap-frog-based synthesis of CMOS mieropower nth-order log-domain filters[C]// IEEE Poster Session IV: Analog & Mixed Signal Design, 2004:305- 308.
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同被引文献21

  • 1FREY D R. Exponential state-space filters: a generic current-mode design strategy [J].IEEE Trans Circ and Syst - I: Fundamental Theory and Application, 1996, 43: 34-42.
  • 2FESTILA L, GROZ R, CIRLUGEA M, et al. Modular analysis and design of log-domain circuits based on LIN_ELIN transformations [J].Analog Integr Circ Sign Process, 2007, 50 (10): 231-249.
  • 3MINCH B A. Multiple-input translinear elemem logdomain filters [J]. IEEE Trans Circ and Syst-Ⅱ Analog and Digital Signal Processing, 2001, 48 (1): 29-36.
  • 4MINCH B A. Synthesis of static and dynamic multipie-input translinear element networks [J]. IEEE Trans Circ and Syst -Ⅰ : Reg Pap, 2004, 51(2) : 409- 421.
  • 5AKITA I, WADA K, TADOKORO Y. Low-voltage CMOS syllabic-companding log domain filter [J]. Proc IEEE Int Symp Circ and Syst. 2006: 3337-3340.
  • 6Y. P. Tsividi, V. Gopinathan, L. Toh. Companding in signal processing[J]. Electronic Lett., 1990, 26 (17) :1330--1332.
  • 7D. Peery, G. W. Roberts. Log-domain filters based on LC ladder synthesis[C]. Proc. IEEE Int. Syrup. Circuits Syst. ( ISCAS95 ), Seattle, WA, 1995:310--314.
  • 8Jirayuth Mahattanakul, ChrisToumazou. Modular log--domain filters based upon linear Gm-C filter synthesis [J]. IEEE TRANSACTIONS ON CIR- CUITS AND SYSTEMS- I: FUND AMENTAL THEORY AND APPLICATIONS, DECEMBER 1999,46(12) : 1421-- 1430.
  • 9D.R.Frey. Log-domain filtering: An approach to current-mode filtering[C]. IEEE Proc. G., 1993, 140(6) : 406--418.
  • 10All Kircay, Ugar Cam. State-Space Synthesis of Current-Mode First-Order Log-Domain Filters. [J]. Turk J Elec Engin, 2006,14 (3) : 400--408.

引证文献4

二级引证文献5

湘潭大学自然科学学报
2008年 第1期

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