STLC90115 データシートの表示（PDF） - STMicroelectronics

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STLC90115

ZipperWire™ VDSL DMT Chip Set

STMicroelectronics 

1 FEATURES

s Adaptive frequency-domain equalization for

better robustness in environment with bridged-

taps.

s Applicable to both ends of loop: LT and NT.

s Protection against 250µs duration impulsive

noises thanks to Programmable Reed-Solomon

Codec RS (N, K) and configurable triangular

interleaver.

s Implements Discrete Multitone (DMT)

modulation and Digital Frequency Division

Duplexing (FDD) for deployment flexibility.

s Embedded Operation Channel messages

(EOC) for continuous and on-line monitoring on

the communication link between LT and NT.

s Support all frequency band plans (998, 997 and

Fx) specified in ETSI, ANSI and ITU-T standard

draft documents.

s Fast and/or slow data-path selectable at start-

up.

s Selection of frequency band plan by software

under Network Management (NM) control.

s ATM Transmission Convergence layer (ATM-

TC) with Utopia interface (level 2).

s Support analogue bandwidth up to 12 MHz with

an embedded 4096-tone IFFT/FFT processor.

s 64kps user rate granularity.

s Embedded modem control Software for line

parameters set-up, communication link

initialization, show time monitoring and

telemetry information collection (BER, SNR,

standard deviation).

s Generation of deep frequency notches under

STLC90115

STLC90114

ZipperWire™

VDSL DMT Chip Set

PRODUCT BRIEF

TQFP100

BGA416

ORDERING NUMBERS:

STLC90114

STLC90115

NM control.

s Mapping/demapping functions supporting

constellation size up to 16384 points (14 bits).

s Protection against two simultaneous; RF HAM

ingress

s Adaptive bit-loading algorithm for maximal use

of the channel capacity.

s Accurate PSD monitoring and adaptation to

comply to reference PSD masks specified in

ETSI and ANSI standard draft documents.

s Control and Maintenance via a Operation and

Maintenance API from an external controller

true the embedded CTRL-E interface.

2 APPLICATIONS

s Central office and customer premises

equipment

s DSL access Multiplexers

s Integrated access devices

March 2003

1/8

This is preliminary information on a new product now in development. Details are subject to change without notice.

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