ST20190 Datasheet, PDF (1/7 Pages) STMicroelectronics – ADSL, ADSL2 and ADSL+ Modem Chipset for CPE Applications with Utopia II Interface

ST20190
ADSL, ADSL2 and ADSL+
Modem Chipset for CPE Applications with Utopia II Interface
DATA BRIEF
1 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
2 FEATURES
■ High Integration
– 2 chips, Line to ATM
– Direct ATM Interface
– Line Driver integrated
– Highly reduced bill of material cost
■ Support for multiple ADSL standards:
– ANSI T1.413 Issue2
– ITU G.992.1 (G.dmt)
– Annex A, Annex B, Annex C
– ITU G.992.2 (G.Lite)
– ITU G.992.3 (ADSL2)
– Annex A, B, C, I, J and L
– ITU G.992.4 (G.Lite bis)
– ITU G.992.5 (ADSL2+)
– Annex A, B, C, I, J and L
– 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
Figure 1. Package
TQFP100
Table 1. Order Codes
Part Number
ST20184
ST20196
LBGA208
Package
TQFP100
LBGA208
■ Complete modem package
– No dependency on external processor and
easy,straight forward integration with external
network processors
– Full reference design kit for modem manufac-
turers, including schematics, layout, BoM,
HW design guide, firmware
■ Highest Performance
– Fully rate-adaptive
– ADSL mode > 12 Mbps in Downstream and >
1 Mbps in Upstream
– ADSL+ mode > 20 Mbps in Downstream and
> 2 Mbps in Upstream when using 64 tones
(annex L)
3 OVERALL DESCRIPTION
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
REV. 1
1/7
This is preliminary information on a new product now in development. Details are subject to change without notice.