An ADSL central office analog front-end integrating actively-terminated line driver, receiver and filters

Author

Cresi, M. ; Hester, R. ; Maclean, K. ; Agah, M. ; Quarfoot, J. ; Kozak, C. ; Gibson, N. ; Hagen, T.

Author_Institution

Texas Instrum. Inc., Dallas, TX, USA

fYear

2001

fDate

7-7 Feb. 2001

Firstpage

304

Lastpage

305

Abstract

The analog front-end (AFE) of a central office ADSL modem is typically partitioned into two technologies. The data converters, analog filters and sometimes receiver amplifier are fabricated on a 3.3 V or 5 V mixed signal CMOS, while the remainder employs a higher-voltage bipolar process. This circuit has alternative AFE partitioning where the analog filters and receiver amplifier are integrated with the line driver in a 15 V dielectrically-isolated bipolar technology.

Keywords

active filters; digital subscriber lines; driver circuits; isolation technology; modems; receivers; 15 V; 3.3 V; 5 V; active termination; analog filter; analog front-end; central office ADSL modem; data converter; dielectric isolation; high-voltage bipolar technology; line driver; mixed-signal CMOS technology; receiver amplifier; Bandwidth; CMOS technology; Central office; Chebyshev approximation; Driver circuits; Frequency; Integrated circuit technology; Low pass filters; Resistors; Transmitters;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2001. Digest of Technical Papers. ISSCC. 2001 IEEE International

Conference_Location

San Francisco, CA, USA

ISSN

0193-6530

Print_ISBN

0-7803-6608-5

Type

conf

DOI

10.1109/ISSCC.2001.912649

Filename

912649