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參數資料
| 型號： | ST70135A |
| 廠商： | 意法半導體 |
| 英文描述： | ASCOTTM DMT TRANSCEIVER |
| 中文描述： | ASCOTTM大唐收發器 |
| 文件頁數： | 1/29頁 |
| 文件大小： | 198K |
| 代理商： | ST70135A |
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April 2000
I
DMT
COMPATIBLE
STANDARDS:
- ANSI T1.413 ISSUE 2
- ITU-T G.992.1 (G.DMT)
- ITU-T G.992.2 (G.LITE)
MODEM
FOR
CPE
FOLLOWING
ADSL,
WITH
THE
I
SUPPORTS EITHER ATM (UTOPIA LEVEL
1 & 2) OR BITSTREAM INTERFACE
I
16 BIT MULTIPLEXED MICROPROCESSOR
INTERFACE (LITTLE AND BIG ENDIAN
COMPATIBILITY)
I
ANALOG FRONT END MANAGEMENT
I
DUAL
INTERLEAVED
LATENCY
PATHS:
FAST
AND
I
ATM’S PHY LAYER: CELL PROCESSING
(CELL DELINEATION, CELL INSERTION,
HEC)
I
ADSL’S OVERHEAD MANAGEMENT
I
REED SOLOMON ENCODE/DECODE
I
TRELLIS ENCODE/DECODE (VITERBI)
I
DMT MAPPING/ DEMAPPING OVER 256
CARRIERS
I
FINE (2PPM) TIMING RECOVER USING
ROTOR AND ADAPTATIVE FREQUENCY
DOMAIN EQUALIZING
I
TIME DOMAIN EQUALIZATION
I
FRONT END DIGITAL FILTERS
I
0.35
μ
m HCMOS6 TECHNOLOGY
I
144 PIN PQFP PACKAGE
I
POWER CONSUMPTION1 WATT AT 3.3V
APPLICATIONS
Routers at SOHO, stand-alone modems, PC
modems
GENERAL DESCRIPTION
The ST70135A is the DMT modem and ATM
framer of
the
STMicroelectronics
chipset. When coupled with ST70134 analog
front-end and an external controller running
dedicated firmware, the product fulfills ANSI
T1.413 ”Issue 2” DMT ADSL specification.
The chip supports UTOPIA level 1 and UTOPIA
level 2 interface and a non ATM synchronous
bit-stream interface.
The ST70135A can be split up into two different
sections.
The
physical
DMT modulation, demodulation, Reed-Solomon
encoding, bit interleaving and 4D trellis coding.
The ATM section embodies framing functions for
the generic and ATM Transmission Convergence
(TC) layers.
The generic TC consists of data scrambling and
Reed Solomon error corrections, with and without
interleaving. The ST70135A is controlled and
programmed by an external controller (ADSL
Transceiver
Controller,
programmable coefficients.
The firmware controls the initialization phase and
carries out the consequent adaptation operations.
ASCOT
one
performs
the
ATC)
that
sets
the
PQFP144
ORDERING NUMBER:
ST70135A
ST70135A
ASCOT
TM
DMT TRANSCEIVER
相關PDF資料 |
PDF描述 |
|---|---|
| ST70136 | CPE ADSL ANALOG FRONT END |
| ST70136B | CPE ADSL ANALOG FRONT END |
| ST70136G | CPE ADSL ANALOG FRONT END |
| ST70137 | UNICORNTM PCI & USB CONTROLLERLESS ADSL DMT TRANSCEIVER |
| ST70137TQFP | UNICORNTM PCI & USB CONTROLLERLESS ADSL DMT TRANSCEIVER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ST70136 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CPE ADSL ANALOG FRONT END |
| ST70136B | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CPE ADSL ANALOG FRONT END |
| ST70136G | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CPE ADSL ANALOG FRONT END |
| ST70136Q | 功能描述:射頻無線雜項 ADSL Analg Front-End RoHS:否 制造商:Texas Instruments 工作頻率:112 kHz to 205 kHz 電源電壓-最大:3.6 V 電源電壓-最小:3 V 電源電流:8 mA 最大功率耗散: 工作溫度范圍:- 40 C to + 110 C 封裝 / 箱體:VQFN-48 封裝:Reel |
| ST70137 | 制造商:STMicroelectronics 功能描述: |
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