MTC20174 ST Microelectronics, MTC20174 Datasheet

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MTC20174

Manufacturer Part Number
MTC20174
Description
(MTC20138 / MTC20174) PCI/USB ADSL CHIPSET
Manufacturer
ST Microelectronics
Datasheet

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DataSheet4U.com
www.DataSheet4U.com
DataSheet
1
The Unicorn II chipset is designed to simplify the
development of low-cost ADSL CPE modems for
Windows, Mac and Linux based environments and
enables manufacturers to achieve a very compet-
itive production cost. Due to its controller-less ar-
chitecture and particularly the advantage that it
does not require an external SDRAM in its E-BOM,
the total cost of the external components needed
in the modem is the best in its class. With a low
component count of less then 140 external compo-
nents and small form factor packages, the Unicorn
II easily fits on a standard 2 layer single sided PCB
with small dimensions which contributes signifi-
cantly to further lowering overall system costs. To-
gether with its low power consumption, high-
speed performance up to 8 Mbps and customiz-
able complete software driver packages, the Uni-
corn II is the ideal choice for USB and PCI based
ADSL modems.
Figure 1. Chipset Architecture Overview
September 2004
This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.
4
DESCRIPTION
U
.com
USB
DMT/ATM
ST70138
PC/Mac
PCI
PCI/USB ADSL CHIPSET: ST70138 + MTC20174
FOR ULTRA LOW COST ADSL MODEM
DataSheet4U.com
MTC20174
EEPROM
(0-16KB)
Optional
AFE
The Unicorn II chipset consists of the digital
ST70138 chip and the MTC20174 analog front
end.
The ST70138 is supplied in two packages,
TQFP144 and LBGA80. The ST70138T packaged
in TQ144 is a pin-to-pin compatible version of the
ST70137 enabling manufacturers to benefit direct-
ly from the cost and performance advantages that
the ST70138 brings.
The TQ144 flavor brings out both the USB and PCI
interfaces. Supplied in a compact USB-only
LBGA80 package, the ST70138B brings addition-
al cost advantages to new designs.
The MTC20174 Analog Front End (AFE) with inte-
grated 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.
DataSheet4U.com
Line Interface
Phone Line
Unicorn II
ST20138
DATA BRIEF
Rev. 1
1/6

Related parts for MTC20174

MTC20174 Summary of contents

Page 1

... Supplied in a compact USB-only LBGA80 package, the ST70138B brings addition- al cost advantages to new designs. The MTC20174 Analog Front End (AFE) with inte- grated 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 ...

Page 2

ST20138 - Unicorn II 2 STANDARDS COMPLIANCE AND INTEROPERABILITY Eleven years of experience have enabled ST to develop a chipset that offers full compatibility with all cur- rent full-rate and G.lite ADSL standards, USB standards including plug-and-play support. The ...

Page 3

... DIRECT INTERFACE TO USB (USB RELEASE 1.1 SPECIFICATION) DIRECT INTERFACE TO EXTERNAL 8/16bit SERIAL MEMORY TO SUPPORT USB USER'S CONFIGURATION. DIRECT ANALOG FRONT END INTERFACE FOR MTC20174 CLOCK & RESET INTERFACE 1.8V AND 3.3V POWER SUPPLY TTL LOGIC LEVELS COMPATIBLE POWER MANAGEMENT CAPABILITIES LOW POWER CONSUMPTION : MAX 0.45W ...

Page 4

... 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 ana- log 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° ...

Page 5

Table 3. Revision History Date September 2004 DataSheet4U.com 4 DataSheet U .com Revision 1 First Issue DataSheet4U.com ST20138 - Unicorn II Description of Changes DataSheet4U.com 5/6 ...

Page 6

ST20138 - Unicorn II Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which ...

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