An NMOS telephone codec for transmission and switching applications
- 1 February 1979
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Solid-State Circuits
- Vol. 14 (1), 47-53
- https://doi.org/10.1109/jssc.1979.1051140
Abstract
Describes a monolithic high-feature per-channel companded PCM coder/decoder (codec) and implications of the advanced architecture for fixed and variable time slot applications. Technology tradeoffs are identified, and implementation of the critical analog circuit functions in n-channel MOS technology is discussed. These circuits include the first commercial embodiment of a novel buried ion voltage reference.Keywords
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