ST20184 STMicroelectronics, ST20184 Datasheet - Page 3

• Manufacturer Part Number: ST20184
• Manufacturer: STMicroelectronics

Specifications of ST20184

• Main Category: Chipset
• Sub-category: Analog Front End
• Data Rate: 24Mbps
• Transmit Rate Range: 2.5 to 24kbps
• Power Supply Type: Analog
• Operating Supply Voltage (typ): 3.3/5V
• Package Type: TQFP
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (max): 5.25V
• Supply Current: 280mA
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Pin Count: 100
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

dition to the mandatory new features, the DMT engine includes some advanced techniques that differen-
tiate the product from its competitors; these include innovative Per Tone Equalizer (PTEQ) optimizing
short loop and bridge tap performances and reducing the impact of RFI in ADSL2+ mode. A high perfor-
mance echo canceller (EC) and a fully digital clock recovery scheme (TDI) further differentiate the
ST20190 ADSL2+ performances.
To be prepared for triple-play applications, a flexible TC-layer has been implemented. The cached ARM
micro-controller allows further improvement of the performances and allows fast and simple integration
with major third party network processors. Data is exchanged over the Utopia level 1 or 2 interface and
the commands via the ST Ctrl-E modem control command protocol.
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ST Utopia chipsets are designed for OEM customers to minimize product development effort, to reduce
the implementation risks and to decrease time-to-market. Ease of integration has been implemented for
system designs. Including the use of standard Utopia and Ctrl-E interface for data and control, modem
software runs on the embedded controller separated from other system-related and application-specific
functions. The boundary between the two domains is provided by means of a simple modem control pro-
tocol (CTRL-E).
This “packaged modem” approach provides a self-contained ADSL modem solution, allowing system
manufacturers to concentrate on system issues.
Customers are supported through a complete kit which includes datasheets, application notes, schemat-
ics, bill of materials, layout information and modem software. In addition PC test and control software is
available to ease the evaluation and debugging phase.
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Table 2. Revision History
Package : LBGA-208
Supply voltages: 3.3V and 1.2V
Temperature range: -40°C to 85°C
Typical power consumption: 700mW
Development support
Revision History
June 2004
May 2005
Date
Revision
1
2
First Issue.
Updated textes and figures.
Description of Changes
ST20190
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