SINGLE-CHANNEL PCM CODEC

被引：13

作者：

EVERARD, JD

机构：

[1] Digital Switching Systems Division, British Post Office Research Department, Ipswich

来源：

IEEE JOURNAL OF SOLID-STATE CIRCUITS | 1979年 / 14卷 / 01期

关键词：

D O I：

10.1109/JSSC.1979.1051138

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A single-channel PCM codec is described which is being manufactured for use in the new British Post Office (BPO) range of digital PABX's. The codec works on the principle of converting to and from PCM using an intermediate delta-sigma modulation code ‘format. This technique allows relatively simple analog circuitry to be used in conjunction with a digital LSI chip to perform the conversion between the intermediate code and PCM. The codec meets all the relevant CCITT Recommendations with significant operating margins. Copyright © 1979 by The Institute of Electrical and Electronics Engineers, Inc.

引用

页码：25 / 37

页数：13

共 10 条

[1] USING TRIANGULARLY WEIGHTED INTERPOLATION TO GET 13-BIT PCM FROM A SIGMA-DELTA MODULATOR [J].