Title :
An integrated interpolative PCM decoder
Author :
Wooley, Bruce A. ; Fowlis, D. Colin ; Henry, James L. ; Williams, Clarence E., Jr.
Abstract :
Discusses the technique of time averaging interpolation which provides a means for obtaining telephone quality digital-to-analog conversion using conventional digital integrated-circuit processing. Describes a monolithic circuit that decodes the 8-kHz companded PCM commonly used in voiceband communication systems. The circuit, realized in a standard buried collector bipolar technology, contains 300 integrated injection logic (I/SUP 2/L) gates together with a current-driven resistive ladder network. The performance of the decoder exceeds typical toll network objectives.
Keywords :
Code convertors; Decoding; Digital integrated circuits; Digital-analogue conversion; Integrated logic circuits; Pulse-code modulation; code convertors; decoding; digital integrated circuits; digital-analogue conversion; integrated logic circuits; pulse-code modulation; Decoding; Dynamic range; Electrical engineering; Integrated circuit technology; Interpolation; Logic circuits; Logic gates; Phase change materials; Signal resolution; Telephony;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.1979.1051137
