Title :
An integrated analog front-end for VDSL
Author :
Sands, N.P. ; Naviasky, E. ; Evans, W. ; Mengele, M. ; Faison, K. ; Frost, C. ; Casas, M. ; Williams, M.
Author_Institution :
Broadband Access Group, Texas Instrum., San Jose, CA, USA
Abstract :
Digital subscriber loop (DSL) technology allows high-speed transmission between the telephone central office and subscriber premises using existing unshielded twisted-pair loop plant, coexisting with telephony. Very-high-speed DSL (VDSL) is a new service aimed at loop lengths up to 3000 m, providing 2-52 Mb/s data. The VDSL signal occupies the 0.2-11 MHz spectrum. This IC provides the analog functions required in a VDSL modem that uses synchronized discrete multi-tone (SDMT) line code. It is implemented in 0.35 /spl mu/m CMOS double-poly-triple-metal process and consumes 550 mW at 22.08 MHz sample rate with a single 3.3 V supply. The die measures 180/spl times/150 mil/sup 2/.
Keywords :
CMOS analogue integrated circuits; digital subscriber lines; synchronisation; twisted pair cables; 0.2 to 11 MHz; 0.35 micron; 2 to 52 Mbit/s; 22.08 MHz; 3.3 V; 3000 m; 550 mW; CMOS; VDSL; analog front-end; analog functions; digital subscriber loop technology; double-poly-triple-metal process; high-speed transmission; loop lengths; sample rate; subscriber premises; synchronized discrete multi-tone line code; telephone central office; unshielded twisted-pair loop plant; Capacitors; DSL; Driver circuits; Frequency; Impedance; Resistors; Telephony; Transmitters; Tuning; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 1999. Digest of Technical Papers. ISSCC. 1999 IEEE International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-5126-6
DOI :
10.1109/ISSCC.1999.759218
