ST70136 datasheet(1/24 Pages) STMICROELECTRONICS

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September 2001

s WIDE TRANSMIT AND RECEIVE DYNAMIC

RANGE

TO

REDUCE

EXTERNAL

FILTERING REQUIREMENTS

s RECEIVE PROGRAMMABLE GAIN: 0 TO

31dB GAIN IN 1dB STEPS

s RECEIVE PROGRAMMABLE ATTENUATOR

0,-4dB, -8dB, -12dB

s 12-BIT A/D CONVERTER IN RECEIVE PATH

s TRANSMIT PROGRAMMABLE GAIN: 0 TO

-15dB IN 1dB STEPS

s 14-BIT D/A CONVERTER IN TRANSMIT PATH

s LOW POWER MODE: 10mW IN LISTENING

MODE, 250

µW IN POWER DOWN

s TONE DETECTOR: ACTIVITY DETECTION

FOR WAKE-UP FUNCTION

s 64-PIN TQFP PACKAGE

s 64-PIN LFBGA PACKAGE

s 0.50

µm, 5V BICMOS TECHNOLOGY

s 3.3V DIGITAL INTERFACE

s 5V ANALOG INTERFACE

INTRODUCTION

The ST70136 ADSL Analog Front End (AFE) chip

implements

the

analog transceiver functions

required in a Customer Premise ADSL modem. It

connects the digital modem chip with the loop

driver and hybrid balance circuits.

The AFE has been designed with high dynamic

range in order to greatly reduce the external filter-

ing requirements at the front end.

The AFE chip and its companion digital chip along

with a loop driver, implement the complete

G.992.2 and G.992.1 DMT modem solution.

The AFE receive path contains a programmable

gain amplifier (RxPGA), a low pass anti-aliasing

filter, and a 12-bit A/D converter. The RxPGA is

digitally programmable from 0 to 31dB in 1dB

steps.

The AFE transmit path consists of a 14-bit D/A

converter, followed by a programmable gain

amplifier (TxPGA). The transmit gain is program-

mable from 0 to -15dB in 1dB steps.

TQFP64 Full Plastic

(10 x 10 x 1.40 mm)

ORDER CODE: ST70136B

LFBGA64

(8 x 8 x 1.7 mm)

ORDER CODE: ST70136G

Figure 1 : Overall Application Block Diagram

Software for Control xDSL

PC

PCI

or

USB

PCI

or

USB

DMT

xDSL

AFE

ST70137

ST70136

LOOP

DRIVER

TS612/TS652

LINE

HYBRID

ST70136

CPE ADSL ANALOG FRONT END

Số phần tương tự - ST70136

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	ST70134	57Kb / 8P	ASCOT ADSL MODEM CHIP SET FOR CPE Apr-2000
	ST70134	130Kb / 8P	ASCOT ADSL MODEM CHIP SET FOR CPE Apr-2000
	ST70134	157Kb / 22P	ASCOTTM INTEGRATED ADSL CMOS ANALOG FRONT-END CIRCUIT Jan-2001
	ST70134-ST70135A	57Kb / 8P	ASCOT ADSL MODEM CHIP SET FOR CPE Apr-2000
	ST70134A	157Kb / 22P	ASCOTTM INTEGRATED ADSL CMOS ANALOG FRONT-END CIRCUIT Jan-2001

More results

Mô tả tương tự - ST70136

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
STMicroelectronics	STLC60134S	166Kb / 22P	TOSCA INTEGRATED ADSL CMOS ANALOG FRONT-END CIRCUIT Aug-1999
Samsung semiconductor	S5N8943B	263Kb / 22P	G.Lite ADSL Analog Front End IC
Samsung semiconductor	S5N8951X	262Kb / 22P	G.dmt ADSL Analog Front End IC
Intersil Corporation	HC6094	51Kb / 9P	ADSL Analog Front End Chip February 1999
Texas Instruments	AFE1302	221Kb / 11P	ADSL ANALOG FRONT-END
STMicroelectronics	MTC20154	533Kb / 21P	INTEGRATED ADSL CMOS ANALOG FRONT-END CIRCUIT Feb-2004
fujitsu semiconductor	MB86626	227Kb / 6P	KeyWave AFE ADSL Analog Front End
STMicroelectronics	MTC20454	513Kb / 15P	QUAD INTEGRATED ADSL CMOS ANALOG FRONT END CIRCUIT Feb-2004
Texas Instruments	AFE1302	248Kb / 14P	ADSL ANALOG FRONT-END
STMicroelectronics	ST70134	157Kb / 22P	ASCOTTM INTEGRATED ADSL CMOS ANALOG FRONT-END CIRCUIT Jan-2001

More results

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