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Horng, J.W. (2005) Current Conveyors Based All Pass Filters and Quadrature Oscillators Employing Grounded Capacitors and Resistors. Computers & Electrical Engineering, 31, 81-92.
http://dx.doi.org/10.1016/j.compeleceng.2004.11.006

has been cited by the following article:

• TITLE: CDDITA-Based Voltage-Mode First Order All Pass Filter Configuration

  AUTHORS: Dinesh Prasad, Kuldeep Panwar, D. R. Bhaskar, Mayank Srivastava

  KEYWORDS: CDDITA, All Pass Filter, First Order

  JOURNAL NAME: Circuits and Systems, Vol.6 No.11, November 18, 2015

  ABSTRACT: This realization of a voltage-mode first order voltage-mode all pass filter (VM-APF) employing single current differencing differential input transconductance amplifier (CDDITA) as active component is presented. The proposed configuration employs one CDDITA along with two resistors and one grounded capacitor. The pole frequency and phase shift of proposed VM-APF are electronically tunable by transconductance of CDDITA. The proposed circuit is verified by SPICE simulations.