參數(shù)資料
型號: STLC60135
廠商: 意法半導(dǎo)體
英文描述: TOSCA ADSL DMT TRANSCEIVER
中文描述: 托斯卡寬帶大唐收發(fā)器
文件頁數(shù): 1/25頁
文件大?。?/td> 189K
代理商: STLC60135
DTM modem for ADSL, compatible with the
following standards:
– ANSI T1.413 Issue 2
– ITU-T G.992.1(G.dmt)
– ITU-T G.992.2(G.lite)
Same chip for both ATU-C and ATU-R
Supportseither ATM (Utopia level 1 &2) or bit-
stream interface
16 bit multiplexed microprocessor interface(lit-
tle and bigendian compatibility)
Analog FrontEnd management
Dual latencypaths: fastand interleaved
ATM’s PHY layer: cell processing (cell deline-
ation, cell insertion, HEC)
ADSL’s overhead management
Reed Solomonencode/decode
Trellis encode/decode(Viterbi)
DMT mapping/ demapping over 256 carriers
Fine (2ppm) timing recover using Rotor and
AdaptativeFrequencyDomain Equalizing
Time Domain Equalization
Frontend digitalfilters
0.35
μ
m HCMOS6 Technology
144 pin PQFPpackage
PowerConsumption1 Watt at 3.3V
Applications
ATU-C:
DSLAM,Routers at CentralOffice
ATU-R:
Routers at SOHO, stand-alone mo-
dems, PC mother boards
GeneralDescription
The STLC60135 is the DMT modem and ATM
framerof theSTMicroelectronics Tosca
chipset.
When coupled with STLC60134 analog front-end
and an external controller running dedicated firm-
ware, the product fulfils ANSI T1.413 “Issue 2”
DMT ADSL specification.
The STLC60135 may be used at both ends of
ADSL loop: ATU-C and ATU-R. The chip sup-
ports UTOPIA level 1 and UTOPIA level 2 inter-
face and a non ATM synchronous bit-stream in-
terface.
September 1999
PQFP144
ORDERING NUMBER:
STLC60135
STLC60135
TOSCA
ADSL DMT TRANSCEIVER
TEST
MODULE
DATA SYMBOL TIMING UNIT
VCXO
DSP
FRONT-END
FFT/IFFT
ROTOR
TRELLIS
CODING
MAPPER/
DEMAPPER
GENERIC
TC
REED/
SOLOMON
ATM
SPECIFIC
TC
INTERFACE
MODULE
CONTROLLER INTERFACE
AFE
CONTROL
INTERFACE
TEST SIGNALS
CLOCK
STM
UTOPIA
AFE
INTERFACE
D98TL315
AFE
CONTROL
CONTROLLER BUS
GENERAL PURPOSE I/Os
Figure 1. Block Diagram
1/25
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