Title :
A switched current mode real ear-type lattice
Author :
Moskowitz, Mosheh T. ; Sellami, Louiza ; Newcomb, Robert W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Maryland Univ., College Park, MD, USA
Abstract :
Switched current circuits are used here to design real degree-one discrete time lattices for use in modeling the inner ear portion of ear-type networks. This lattice is characterized as an electrical two port system and is, therefore, described by a transfer scattering matrix relating input and output signals. This matrix is degree-one and requires only one delay function, which we realize with a switched current circuit containing only one delay. This circuit uses a new sampling switch that substantially reduces the distortion occurring due to the clock feed through in conventional MOS based switches. Spice simulation results are included to support the theory
Keywords :
S-matrix theory; SPICE; biomedical electronics; ear; hearing aids; physiological models; switched current circuits; two-port networks; SPICE simulation; degree-one discrete time lattice; electrical two-port system; inner ear model; sampling switch; switched current circuit; transfer scattering matrix; Circuit simulation; Clocks; Delay; Ear; Feeds; Lattices; Sampling methods; Scattering; Switches; Switching circuits;
Conference_Titel :
Circuits and Systems, 1999. 42nd Midwest Symposium on
Conference_Location :
Las Cruces, NM
Print_ISBN :
0-7803-5491-5
DOI :
10.1109/MWSCAS.1999.867724
