MTC20174-1 STMicroelectronics, MTC20174-1 Datasheet - Page 6

• Manufacturer Part Number: MTC20174-1
• Description: Telecom Line Management ICs ADSL Analg Front-End
• Manufacturer: STMicroelectronics
• Type: Chipsetr

Specifications of MTC20174-1

• Product: Modem Chip
• Interface Type: RJ-11, USB
• Supply Current: 130 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Package / Case: TQFP-100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Features
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Applications
The MTC20174 is an ADSL Analog Front-End
(AFE) with integrated Line-Driver for ATU-R
applications offering Annex A, B and C.
March 2007
For further information contact your local STMicroelectronics sales office.
Fully Integrated AFE and Line Driver for ADSL
Overall 12 bit resolution, 1.1MHz signal
bandwidth
8.8 MS/s ADC
8.8 MS/s DAC
Differential analog I/O
Accurate continuous-time channel filtering
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and transmit filters respectively
Support for multiple ADSL standards:
– ANSI T1.413 Issue 2
– ITU G.992.1 (G.dmt)
– ITU G.992.2 (G.lite)
Highest performance:
– Operation up to 18 kft (26 AWG)
– More than 8 Mbps downstream and 832
– More than 3 Mbps downstream and 760
100 pin TQFP package allows high-density
board design
Power dissipation of 900mW at 25°C, typical
TQFP100 package
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& 4
Kbps upstream up to 8 kft (26 AWG)
kbps upstream up to 12 kft (26 AWG)
Annex A
Annex B (ADSL over ISDN)
Annex C (ADSL over ISDN
SBM/DBM/G.dmt)
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order tunable continuous-time receive
ADSL analog front-end with integrated line driver
Rev 2
Description
The MTC20174 Analog Front End (AFE) with
integrated line driver is designed for DMT based
ADSL CPE modems compliant with ANSI T1.413
issue 2, ITU G.992.1 (G.dmt) and ITU G.992.2
(G.lite), for Annex A, B and C.
It is intended to be used with the MTC20166 DMT
modem and ATM framer as part of the MTK20170
chipset, but may also be used to support other
ADSL signal processors. It includes the following
parts:
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The following figure provides a graphical
representation of the MTC20174 functional blocks
with an additional separation in RX and TX path.
The analog and digital part have separated 3.3V
power supplies. In addition some part of the
analog section of the MTC20174 has a power
supply of 5V.
The typical total power consumption of the
MTC20174 is 900mW for 12dBm of line power
(full operation) at 250°C.
A 12-bit 8.8Msamples/s DAC
A 13-bit 8.8Msamples/s ADC
Tunable low-pass and high-pass filters
Low-noise PGAs
A TX Pre-Amplifier
A TX Line-Driver
A fully integrated DCXO
A PLL-based frequency doubler
A filter tuning circuit
A dying gasp circuit
A digital module for control, test and interface
TQFP100
for CPE application
MTC20174
Data Brief
www.st.com
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