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參數(shù)資料
| 型號： | TOSCA |
| 英文描述： | TOSCA (STLC60134 STLC60135) ADSL MODEM CHIP SET |
| 中文描述： | 托斯卡（STLC60134 STLC60135）ADSL調制解調器芯片組 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大小： | 62K |
| 代理商： | TOSCA |
COMPLETE CHIP SET FOR ADSL MODEM
FUNCTIONS
COMPLIANCE WITH ANSI T1.413 ISSUE 1 &
ISSUE2
IMPLEMENTS
DISCRETE
(DMT) MODULATION AND DEMODULATION
DATA RATES UP TO 8Mbps DOWNSTREAM
AND TO 1Mbps UPSTREAM WITH 32Kbps
GRANULARITY
BUILT-IN ATM TRANSPORT
SUPPORT
ADAPTIVE
32Mbps INCREMENTS
APPLICABLEAT BOTH ENDS OF LOOP:
ATU-C (LT) AND ATU-R (NT)
255 CARRIERS WITH 4.3125KHzSPACING
DEDICATED SOFTWARE DRIVER AVAIL-
ABLE
PROCESSOR INDEPENDENT C++ SOURCE
COMPILATION
FREQUENCY
DIVISION
(FDM) FOR HIGH ROBUSTNESS IN PRES-
ENCE OF CROSSTALK
REED-SOLOMON FORWARD ERROR COR-
RECTION
TRELLISCODER AND DECODER
PROGRAMMABLE
SIMULTANEOUS
PORT OF INTERLEAVED AND NON-INTER-
LEAVEDCHANNELS (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 (LEVEL1 OR 2)
MICROCONTROLLER INTERFACE WITH 16
BITS MULTIPLEXEDADDRESS/DATA BUS
LOW POWER TECHNOLOGY: 1.3w TOTAL
SINGLE3.3V POWER SUPPLY
-40 TO +85
°
cOPERATINGTEMP RANGE
MULTITONE
RATE
MODE
IN
MULTIPLEXING
SUP-
Applications
HIGH SPEED INTERNET ACCESS
REMOTE ACCESS TO CORPORATE NET-
WORK
FOR
TELECOMMUTERS
BRANCHOFFICES
VIDEO-ON-DEMAND OVER TWISTED PAIR
AND
ADSL MODEMS, DSLAMs, ROUTERS, AND
CONCENTRATORS
ADSL PCNIC’s
LITE-ADSL T1.413 BASED FOR NT-SIDE
SPLITTERLESSAPPLICATIONS
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 modemblock configuration.
This is preliminary information on a new product now in development. Details are subject to change without notice.
November 1998
ORDERING NUMBERS:
STLC60134 (TQFP64)
STLC60135 (PQFP144)
STLC60134
STLC60135
ADSL MODEM CHIP SET
PRODUCT PREVIEW
TQFP64
PQFP144
DMT
MODEM
STLC60135
UTOPIA
μ
CONTROL
MEM
AFE
UTP
STLC60134
D98TL390
1/7
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