An integrated interpolative PCM decoder

Author

Wooley, Bruce A. ; Fowlis, D. Colin ; Henry, James L. ; Williams, Clarence E., Jr.

Volume

14

Issue

1

fYear

1979

Firstpage

20

Lastpage

25

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;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/JSSC.1979.1051137

Filename

1051137