Title :
A signal flow graph based design method for square-root domain circuits
Author :
Psychalinos, C. ; Vlassis, S.
Author_Institution :
Phys. Dept., Aristotle Univ. of Thessaloniki, Greece
Abstract :
A new systematic design method for square-root domain (√x-domain) circuits, based on the Signal Flow Graph (SFG) synthesis approach, is introduced in this paper. The SFG of the prototype system is modified, using a proposed set of operators, in such a way that square-root domain building blocks could be used for the corresponding implementations. For this purpose, new square-root domain integrator configurations have been presented. As an example, a 5-th order Chebyshev lowpass filter was designed. Simulation results confirm the validity of the proposed design technique.
Keywords :
Chebyshev filters; active filters; analogue processing circuits; current-mode circuits; integrating circuits; ladder filters; linear network synthesis; low-pass filters; signal flow graphs; 5th order lowpass filter; Chebyshev lowpass filter; SFG synthesis approach; SFG-based design method; filter design; integrator configurations; set of operators; signal flow graph based design method; square-root domain circuits; Chebyshev approximation; Circuit synthesis; Design methodology; Filters; Flow graphs; MOSFETs; Prototypes; Psychology; Signal synthesis; Threshold voltage;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Conference_Location :
Phoenix-Scottsdale, AZ
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010961
