Title :
A PCM Voice Codec with On-Chip Filters
Author :
Caves, J.T. ; Chan, C.H. ; Rosenbaum, S.D. ; Sellars, L.P. ; Terry, J.B.
Author_Institution :
Bell-Northern Res. Ltd., Ottawa, Ont., Canada
fDate :
2/1/1979 12:00:00 AM
Abstract :
A monolithic NMOS coder/decoder (codec) with associated CCD transversal minimum-phase filters has been successfully implemented. The codec operates by charge redistribution in a binaryweighted capacitor array, with a resistor chain to define individual steps. The experimental performance compares well with PCM codecs implemented with discrete components.
Keywords :
Charge-coupled filters; MOS integrated circuits; PCM coding/decoding; Transversal filters; Capacitors; Charge coupled devices; Circuits; Codecs; Crosstalk; Decoding; Gold; MOS devices; Phase change materials; Transversal filters;
Journal_Title :
Communications, IEEE Transactions on
DOI :
10.1109/TCOM.1979.1094405
