A PCM voice codec with on-chip filters
- 1 February 1979
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 14 (1) , 65-73
- https://doi.org/10.1109/JSSC.1979.1051143
Abstract
Describes a monolithic NMOS coder/decoder (codec) with associated CCD transversal minimum phase filters which has been successfully implemented. The codec operates by charge redistribution in a binary-weighted capacitor array, with a resistor chain to define individual steps. The experimental performance compares well with PCM codecs implemented with discrete components.Keywords
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