Title :
A transconductor-capacitor video filter and equaliser design
Author :
Yue, Lu ; Greer, N.P.J. ; Sewell, J.I.
Author_Institution :
Dept. of Electron. & Electr. Eng., Glasgow Univ., UK
Abstract :
A design technique for a ladder-based transconductor-capacitor (transconductor-C) lowpass video filter and equalizer is presented. The software package for a general transconductor-C filter and equalizer design is described. A fifth-order elliptic lowpass filter and a sixth-order group delay equalizer are designed. It is shown that the order of the equalizer can be reduced by the application of special techniques for the approximation of the filter transfer function. The comparison of sensitivity between a cascade of biquadratic stages and the ladder-based realization is given. Lower sensitivities to component tolerance for both filter and equalizer are displayed by the ladder-based design. The fifth-order amplitude and sixth-order group delay equalizer are incorporated in a layout for fabrication
Keywords :
biquadratic filters; circuit CAD; delay circuits; elliptic filters; equalisers; ladder filters; low-pass filters; software packages; video signal processing; biquadratic stages; component tolerance; fifth-order elliptic lowpass filter; filter transfer function; ladder-based design; lowpass video filter; sixth-order group delay equalizer; software package; transconductor-capacitor video filter; video equaliser; Circuits; Delay; Equations; Fabrication; Filters; Frequency; Matrix decomposition; Prototypes; Transconductance; Transconductors;
Conference_Titel :
Circuits and Systems, 1993., ISCAS '93, 1993 IEEE International Symposium on
Conference_Location :
Chicago, IL
Print_ISBN :
0-7803-1281-3
DOI :
10.1109/ISCAS.1993.393889
