Title :
Synthesis of distortion compensated log-domain filters using state space techniques
Author_Institution :
Dept. of Comput. Sci. & Electr. Eng., Lehigh Univ., Bethlehem, PA, USA
Abstract :
A new state space method is proposed for the synthesis of “quasi-log domain” filters where the parasitic emitter resistance of transistors is built into the equation formulation. The explicit exponential maps for log domain filters are replaced with implicit exponential maps yielding modified nodal equations for active filters. Circuit realization is discussed and some example circuit topologies are proposed. Finally, the extension to general higher order filters is suggested
Keywords :
active filters; compensation; network topology; state-space methods; active filters; circuit realization; circuit topologies; distortion compensated log-domain filters; equation formulation; higher order filters; implicit exponential maps; modified nodal equations; parasitic emitter resistance; state space techniques; Active filters; Capacitors; Circuit synthesis; Circuit topology; Electronic mail; Equations; Nonlinear filters; State-space methods; Tuning; Voltage;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.704426
