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ST20190 Datasheet

  • ST20190

  • ADSL, ADSL2 and ADSL+ Modem Chipset for CPE Applications wit...

  • 7頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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ST20190
ADSL, ADSL2 and ADSL+
Modem Chipset for CPE Applications with Utopia II Interface
DATA BRIEF
1
鈻?/div>
鈻?/div>
APPLICATIONS
Low end and high end ADSL Bridge and Router
solutions
ADSL Modems / routers for residential and
SOHO broadband access to www and
corporate VPNs
Integrated Access Devices offering VoDSL or
VoIP applications
Home gateway solutions
Figure 1. Package
TQFP100
LBGA208
鈻?/div>
Table 1. Order Codes
Part Number
ST20184
ST20196
鈻?/div>
鈻?/div>
Package
TQFP100
LBGA208
2
鈻?/div>
FEATURES
High Integration
鈥?2 chips, Line to ATM
鈥?Direct ATM Interface
鈥?Line Driver integrated
鈥?Highly reduced bill of material cost
Support for multiple ADSL standards:
鈥?ANSI T1.413 Issue2
鈥?ITU G.992.1 (G.dmt)
鈥?Annex A, Annex B, Annex C
鈥?ITU G.992.2 (G.Lite)
鈥?ITU G.992.3 (ADSL2)
鈥?Annex A, B, C, I, J and L
鈥?ITU G.992.4 (G.Lite bis)
鈥?ITU G.992.5 (ADSL2+)
鈥?Annex A, B, C, I, J and L
鈥?Support of ReachDSLTM with digital com-
panion chip
Cat II functionality: Trellis coding and echo
cancellation
Dual latency support: fast + interleaved
Small footprint packages allow high density
board designs
Embedded controller with cache for powerful
and flexible on chip control of the modem
operation
鈻?/div>
Complete modem package
鈥?No dependency on external processor and
easy,straight forward integration with external
network processors
鈥?Full reference design kit for modem manufac-
turers, including schematics, layout, BoM,
HW design guide, firmware
Highest Performance
鈥?Fully rate-adaptive
鈥?ADSL mode > 12 Mbps in Downstream and >
1 Mbps in Upstream
鈥?ADSL+ mode > 20 Mbps in Downstream and
> 2 Mbps in Upstream when using 64 tones
(annex L)
鈻?/div>
3
OVERALL DESCRIPTION
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
The ST20190 is a new generation ADSL chipset
from STMicroelectronics. It is highly integrated
and has the flexibility to offer all standards, all an-
nexes while being fully optimised for CPE applica-
tions. It provides all the required functions to
implement a complete Utopia rate adaptive DMT
ADSL modem. It consists of the optimised ADSL
Analogue Front-End chip ST20184 and the digital
chip ST20196 which includes a DMT/ATM mo-
dem, and a dedicated ADSL Transceiver Control-
ler with associated Firmware.
As shown in Fig.2, the chipset interfaces have
been defined to allow direct integration into sys-
tems design, reducing both time-to-market and im-
June 2004
This is preliminary information on a new product now in development. Details are subject to change without notice.
REV. 1
1/7

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