Datasheet > ST20138

ST20138

更新时间： 2024-11-22 21:54:59

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		PC
页数	文件大小	规格书
6页	122K
描述
PCI/USB ADSL CHIPSET

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ST20138 数据手册

ST20138

Unicorn II

PCI/USB ADSL CHIPSET: ST70138 + MTC20174

FOR ULTRA LOW COST ADSL MODEM

DATA BRIEF

The Unicorn II chipset consists of the digital

ST70138 chip and the MTC20174 analog front

end.

1 DESCRIPTION

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.

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.

Figure 1. Chipset Architecture Overview

MTC20174

AFE

ST70138

DMT/ATM

Line Interface

USB

PCI

Phone Line

EEPROM

(0-16KB)

Optional

PC/Mac

Rev. 1

1/6

September 2004

This is preliminary information on a new product foreseen to be developed. Details are subject to change without notice.

12 3 4 5 6

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ST20184	STMICROELECTRONICS	获取价格	ADSL, ADSL2 and ADSL+ Modem Chipset for CPE Applications with Utopia II Interface
ST20190	STMICROELECTRONICS	获取价格	ADSL, ADSL2 and ADSL+ Modem Chipset for CPE Applications with Utopia II Interface
ST20196	STMICROELECTRONICS	获取价格	ADSL, ADSL2 and ADSL+ Modem Chipset for CPE Applications with Utopia II Interface
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