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參數(shù)資料
| 型號： | ST70134A |
| 英文描述： | ASCOT (TM) INTEGRATED ADSL CMOS ANALOG FRONT-END CIRCUIT |
| 中文描述： | 阿斯科特（TM）集成寬頻CMOS模擬前端電路 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 154K |
| 代理商： | ST70134A |
1/22
January 2001
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FULLY INTEGRATED AFE FOR CPE ADSL
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OVERALL 12 BIT RESOLUTION, 1.1MHz
SIGNAL BANDWIDTH IN Rx
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8.8MS/s ADC
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8.8MS/s DAC
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THD: -60dB @FULL SCALE
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4-BIT DIGITAL INTERFACE TO/FROM THE
DMT MODEM
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1V FULL SCALE INPUT
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DIFFERENTIAL ANALOG I/O
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ACCURATE CONTINUOUS-TIME CHANNEL
FILTERING
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3rd & 4th ORDER TUNABLE CONTINUOUS
TIME LP FILTERS
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0.5 WATT AT 3.3V
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0.5mm HCMOS5 LA TECHNOLOGY
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64 PIN TQFP PACKAGE
DESCRIPTION
ST70134 is the Analog Front End of the STMicro-
electronics ASCOT
TM
ADSL chipset and when
coupled with ST70135A or ST70235 (DMT
modem) allows to get a T1.413 Issue 2 or G.dmt
compliant solution.
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.
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.
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.
It requires few external components, uses a 3.3V
supply. It is packaged in a 64-pin TQFP in order to
reduce PCB area.
TQFP64
ORDERING NUMBER:
ST70134 (TQFP64)
ST70134A (TQFP64)
ST70134 - ST70134A
ASCOT
TM
INTEGRATED ADSL CMOS
ANALOG FRONT-END CIRCUIT
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ST70134-ST70135A | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ASCOT ADSL MODEM CHIP SET FOR CPE |
| ST70134TR | 功能描述:電信線路管理 IC ADSL DMT Transceiver RoHS:否 制造商:STMicroelectronics 產(chǎn)品:PHY 接口類型:UART 電源電壓-最大:18 V 電源電壓-最小:8 V 電源電流:30 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VFQFPN-48 封裝:Tray |
| ST70135 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:ASCOTTM DMT TRANSCEIVER |
| ST70135A | 制造商:STMicroelectronics 功能描述:Modem Chip Single 144-Pin PQFP |
| ST70136 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:CPE ADSL ANALOG FRONT END |
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