Programmable implementations of xDSL transceiver systems

Author

Wiese, Brian R. ; Chow, Jacky S.

Author_Institution

Texas Instrum. Inc., TX, USA

Volume

38

Issue

5

fYear

2000

fDate

5/1/2000 12:00:00 AM

Firstpage

114

Lastpage

119

Abstract

After a background on digital subscriber line (DSL) technology, this article evaluates the trade-offs between programmable and custom implementations of communications products with an emphasis on xDSL modems. These trade-offs include time to market, risk, flexibility, power consumption, and cost. A key issue is the processing power required to implement the modem. The article takes a detailed look at the processing power required to implement an ADSL or VDSL modem on a programmable platform. It is demonstrated that today´s digital signal processors meet the processing power requirements for an ADSL modem, and it is estimated that the processing requirements of a VDSL modem will be met in the near future

Keywords

VLSI; application specific integrated circuits; digital signal processing chips; digital subscriber lines; modems; programmable circuits; transceivers; ADSL modem; ASIC; DSP chips; VDSL modem; VLSI; communications products; cost; custom implementation; digital signal processors; digital subscriber line technology; flexibility; power consumption; processing power; programmable implementations; programmable platform; risk; time to market; xDSL modems; xDSL transceiver systems; Application specific integrated circuits; Costs; DSL; Digital signal processing chips; ISDN; Modems; OFDM modulation; Signal processing; Signal processing algorithms; Transceivers;

fLanguage

English

Journal_Title

Communications Magazine, IEEE

Publisher

ieee

ISSN

0163-6804

Type

jour

DOI

10.1109/35.841834

Filename

841834