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PDF STLC61256 Data sheet ( Hoja de datos )
| Número de pieza | STLC61256 | |
| Descripción | ADSL Central Office (CO) Chipset | |
| Fabricantes | ST Microelectronics | |
| Logotipo |  |
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CopperWing12
www.DataSheet4U.com
ADSL Central Office (CO) Chipset:
STLC61256/55 + STLC60454 + STLC60243
DATA BRIEF
1 GENERAL DESCRIPTION
The CopperWing12 ADSL Chipset family targets a
complete set of solution for Central Office (CO)
ADSL technology integrating also processing and
management capability to provide the best solu-
tion for ATM/IP DSLAM, ATM/IP mini DSLAM and
"Pizza" boxes. The chipset integrates all ADSL/
ADSL2+ functions from ATM/IP interfaces to the
line in three devices:
■ Two data pump chip options:
– STLC61255: 12 channels ATM ADSL Data
Pump
– STLC61256: 12 Channels ATM/IP ADSL
data Pump with embedded Cell Processor
■ STLC60454: 4 Ch ADSL/ADSL2+ AFE with
integrated receiver and LP filters
■ STLC60243: Dual channel Line Driver
CopperWing12 chipset family provides Ethernet
and ATM interfaces to fit IP and ATM based Re-
mote Unit or CO line cards; it provides also a gen-
eral purpose controller to allow the development of
controller-less line cards.
The Modem Control Software runs entirely on the
DMT Transceiver (no external memory needed for
Interleave memory nor modem SW): the line card
host controller is in charge only of high-level man-
agement operation. The chipset is able to support
not only the current ADSL standards, but also
ADSL2 and ADSL+ (12 channels).
With only 1 square inches and less than 1 Watt per
channel (in ADSL mode, 1.15W/line in ADSL+
mode), the Copperwing12 chipset is one of the
most competitive solutions for CO ADSL applica-
tion. The chip set supports also ADSL+ mode to
deliver higher bit rate (24Mb/s) on short loops
while with Reach Extended ADSL is able to guar-
antee high reach performance.
Figure 1. Chipset Architecture Overview
Flash ROM
Host CPU
SDRAM
ATM/ Utopia
POS In-Band
STM/
Serial
RMII/
STLC61256
Twelve
ADSL
Transceiver
with
SMII/
PerFlow
ATM
Serial Host interface
STLC60454
Quad AFE
STLC60454
Quad AFE
STLC60454
Quad AFE
STLC60243
Dual Line Driver
STLC60243
Dual Line Driver
June 2004
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
REV. 1
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1 page  
STLC60454www.DataSheet4U.com
8 MAIN FEATURES
■ Tx Path
– Low pass filter
– Programmable Gain Amplifier
■ Rx Path
– Programmable filters
– Internal Low Noise Amplifier
■ ITU-T and ANSI Tone Detection per channel
■ Per channel Power Down Function
■ Fully Programmable through the Data Pump
Interface (STLC61255/6)
■ 144-pin LBGA package (13x13mm)
■ Power consumption 0.8W (200mW/line)
■ 0.35 um technology
■ Single 3.3V supply
■ Extended temperature range
4 CHANNEL ADSL/ADSL+ AFE
DATA BRIEF
Figure 1. Package
LBGA144 (13 x 13mm)
Table 1. Order Codes
Part Number
STLC60454
Package
LBGA144
9 DESCRIPTION
The STLC60454 is a 4 channel ADSL AFE. It imple-
ments four analog transceiver functions required for
a central office modem. It connects the digital modem
chip with the line driver and hybrid balance circuit.
This 4 channel AFE has been designed with high dy-
namic range in order to greatly reduce the external fil-
ter requirements. Each single channel can be put in
power down mode and provides programmable filters
in the receive path. No external receiver is required.
June 2004
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
5/8
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| PDF Descargar | [ Datasheet STLC61256.PDF ] | |
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