The Application Of CCCII In The Design Of Filers

The thesis studies the design and application of integrate circuit based on CCCII. Firstly it introduces the present state of the research of analogy integrated circuit. With the topology and model circuit, the principle and feature of the CCCII are analyzed. The applications of the CCCII in the fields of the active network and signal process are synthesized. In addition, realization of analogue divider and oscillator using CCCII is introduced. With internationally latest studies, the paper also proposes some biquadrate filters which are capable to perform the functions of second-order low pass, high pass, band pass, band stop, all pass filtering by selecting one of the three inputs or their proper combinations from the same configuration, furthermore whose natural frequency and the quality factor can be tuned independently. Then a continuous-time biquadratic filter using CCCII is proposed, which can be used in hearing aids and in other analog signal processing applications. Lastly a current mode and a voltage mode novel n-order filters of multifunction are presented. Not all both of the n-order filters are electronic tunable,but also they are integrated conveniently and compatible with VLSI technology.PSPICE simulation results of proposed filter circuits are given to confirm the theoretical analysis.