A/D and D/A conversion for telecommunication

Author

Sevenhans, Jan ; Chang, Zhong-Yuan

Author_Institution

Alcatell Bell, Antwerp, Belgium

Volume

14

Issue

1

fYear

1998

fDate

1/1/1998 12:00:00 AM

Firstpage

32

Lastpage

42

Abstract

Emerging telecom systems such as ADSL and VDSL demand state-of-the-art high speed and high resolution analog-to-digital converters (ADCs) and digital-to-analog converters (DBCs). Moreover, cost and power consumption issues require the use of specific A/D and D/A architectures to achieve the wanted resolution at the required speed at minimum power. In the first part of this article we present an overview of the various ADC and DAC architectures used in Alcatel Telecom systems over the past 15 years, with an emphasis placed on the evolution of ADCs and DACs for today´s asymmetrical-digital-subscriber-loop (ADSL) applications. We then discuss design considerations for high-speed and high resolution ADCs for future very-high-data-rate digital subscriber-line (VDSL) technology

Keywords

analogue-digital conversion; digital communication; digital-analogue conversion; subscriber loops; A/D conversion; ADSL; Alcatel Telecom; D/A conversion; VDSL; asymmetrical-digital-subscriber-loop; power consumption; telecom systems; very-high-data-rate digital subscriber-line; Active filters; Circuits; Clocks; Delta-sigma modulation; Digital filters; Frequency; ISDN; Sampling methods; Speech; Telecommunications;

fLanguage

English

Journal_Title

Circuits and Devices Magazine, IEEE

Publisher

ieee

ISSN

8755-3996

Type

jour

DOI

10.1109/101.648605

Filename

648605