Datasheet > ST70134A

ST70134A

更新时间： 2024-11-22 23:34:47

品牌	Logo	应用领域
其他 - ETC		电信集成电路
页数	文件大小	规格书
22页	155K
描述
ASCOT (TM) INTEGRATED ADSL CMOS ANALOG FRONT-END CIRCUIT

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ST70134A 数据手册

ST70134 - ST70134A

ASCOT^TMINTEGRATED ADSL CMOS

ANALOG FRONT-END CIRCUIT

■ FULLY INTEGRATED AFE FOR CPE ADSL

■ OVERALL 12 BIT RESOLUTION, 1.1MHz

SIGNAL BANDWIDTH IN Rx

■ 8.8MS/s ADC

■ 8.8MS/s DAC

■ THD: -60dB @FULL SCALE

TQFP64

ORDERING NUMBER:

ST70134 (TQFP64)

ST70134A (TQFP64)

■ 4-BIT DIGITAL INTERFACE TO/FROM THE

DMT MODEM

■ 1V FULL SCALE INPUT

The ST70134 analog front end handles 2 trans-

mission channels on a balanced 2 wire intercon-

nection; a 16 to 640Kbit/s upstream transmit

channel and a 1.536Mbit/s to 8.192Mbit/s down-

stream receive channel.

■ DIFFERENTIAL ANALOG I/O

■ ACCURATE CONTINUOUS-TIME CHANNEL

FILTERING

■ 3rd & 4th ORDER TUNABLE CONTINUOUS

This asymmetrical data transmission system uses

high resolution, high speed analog to digital and

digital to analog conversion and high order analog

filtering to reduce the echo and noise in both

receivers and transmitters.

TIME LP FILTERS

■ 0.5 WATT AT 3.3V

■ 0.5mm HCMOS5 LA TECHNOLOGY

■ 64 PIN TQFP PACKAGE

External low noise driver and input stage used

with ST70134 guarantee low noise performances.

The filters, with a programmable cutoff frequency,

use automatic Continuous Time Tuning to avoid

time varying phase characteristic which can be of

dramatic consequence for DMT modem.

DESCRIPTION

ST70134 is the Analog Front End of the STMicro-

electronics ASCOT^TMADSL chipset and when

coupled with ST70135A or ST70235 (DMT

modem) allows to get a T1.413 Issue 2 or G.dmt

compliant solution.

It requires few external components, uses a 3.3V

supply. It is packaged in a 64-pin TQFP in order to

reduce PCB area.

January 2001

1/22

12 3 4 5 6 7...22

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与ST70134A相关器件

型号	品牌	获取价格	描述	数据表
ST70134-ST70135A	STMICROELECTRONICS	获取价格	ASCOT ADSL MODEM CHIP SET FOR CPE
ST70135	STMICROELECTRONICS	获取价格	ASCOTTM DMT TRANSCEIVER
ST70135A	STMICROELECTRONICS	获取价格	ASCOTTM DMT TRANSCEIVER
ST70136	STMICROELECTRONICS	获取价格	CPE ADSL ANALOG FRONT END
ST70136B	STMICROELECTRONICS	获取价格	CPE ADSL ANALOG FRONT END
ST70136G	STMICROELECTRONICS	获取价格	CPE ADSL ANALOG FRONT END
ST70137	STMICROELECTRONICS	获取价格	UNICORNTM PCI & USB CONTROLLERLESS ADSL DMT TRANSCEIVER
ST70137TQFP	STMICROELECTRONICS	获取价格	UNICORNTM PCI & USB CONTROLLERLESS ADSL DMT TRANSCEIVER
ST70138	STMICROELECTRONICS	获取价格	PCI/USB ADSL CHIPSET
ST70138B	STMICROELECTRONICS	获取价格	PCI/USB ADSL CHIPSET