STLC60135 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'STLC60135' PDF : 7 Pages View PDF
STLC60134
®
STLC60135
COMPLETE CHIP SET FOR ADSL MODEM
FUNCTIONS
COMPLIANCE WITH ANSI T1.413 ISSUE 1 &
ISSUE 2
IMPLEMENTS DISCRETE MULTITONE
(DMT) MODULATION AND DEMODULATION
DATA RATES UP TO 8Mbps DOWNSTREAM
AND TO 1Mbps UPSTREAM WITH 32Kbps
GRANULARITY
BUILT-IN ATM TRANSPORT
SUPPORT ADAPTIVE RATE MODE IN
32Mbps INCREMENTS
APPLICABLE AT BOTH ENDS OF LOOP:
ATU-C (LT) AND ATU-R (NT)
255 CARRIERS WITH 4.3125KHz SPACING
DEDICATED SOFTWARE DRIVER AVAIL-
ABLE
PROCESSOR INDEPENDENT C++ SOURCE
COMPILATION
FREQUENCY DIVISION MULTIPLEXING
(FDM) FOR HIGH ROBUSTNESS IN PRES-
ENCE OF CROSSTALK
REED-SOLOMON FORWARD ERROR COR-
RECTION
TRELLIS CODER AND DECODER
PROGRAMMABLE SIMULTANEOUS SUP-
PORT OF INTERLEAVED AND NON-INTER-
LEAVED CHANNELS (DUAL LATENCY)
FULL, REDUCED AND MINIMAL ATM OVER-
HEAD FRAMING MODES
BIT STREAM MODE CAPABLITY FOR STM
TRANSPORT
DIRECT CONNECTION TO ATM SYSTEMS
VIA UTOPIA INTERFACE (LEVEL 1 OR 2)
MICROCONTROLLER INTERFACE WITH 16
BITS MULTIPLEXED ADDRESS/DATA BUS
LOW POWER TECHNOLOGY: 1.3w TOTAL
SINGLE 3.3V POWER SUPPLY
-40 TO +85°c OPERATING TEMP RANGE
Applications
HIGH SPEED INTERNET ACCESS
REMOTE ACCESS TO CORPORATE NET-
WORK FOR TELECOMMUTERS AND
BRANCH OFFICES
VIDEO-ON-DEMAND OVER TWISTED PAIR
ADSL MODEM CHIP SET
PRODUCT PREVIEW
TQFP64
PQFP144
ORDERING NUMBERS: STLC60134 (TQFP64)
STLC60135 (PQFP144)
ADSL MODEMS, DSLAMs, ROUTERS, AND
CONCENTRATORS
ADSL PC NIC’s
LITE-ADSL T1.413 BASED FOR NT-SIDE
SPLITTERLESS APPLICATIONS
GENERAL DESCRIPTION
The ADSL modem chip set with ATM interface
provides all the active functions required to build
a complete ATM-based ADSL modem from line
interface to ATM UTOPIA bus. The chip set em-
ploys Discrete MultiTone modulation as specified
in ANSI T1.413. The chip set can operate at
either end of the loop (in ATU-C or ATU-R mode)
with only changes in the microcontroller code.
Reed-Solomon forward error correction plus Trel-
lis coding with or without interleaving in internal
interleaving RAM provides maximum noise immu-
nity.
Figure 1. ADSL modem block configuration.
DMT
UTOPIA
MODEM
AFE
UTP
STLC60135
STLC60134
µ
CONTROL
MEM
D98TL390
November 1998
1/7
This is preliminary information on a new product now in development. Details are subject to change without notice.
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