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AFE1144 PDF预览

AFE1144

更新时间: 2024-02-25 18:39:39
品牌 Logo 应用领域
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页数 文件大小 规格书
11页 116K
描述
HDSL/MDSL ANALOG FRONT END

AFE1144 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Active零件包装代码:SSOP
包装说明:SSOP-28针数:28
Reach Compliance Code:unknown风险等级:5.8
Is Samacsys:NJESD-30 代码:R-PDSO-G28
JESD-609代码:e0长度:10.2 mm
湿度敏感等级:3功能数量:1
端子数量:28最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH峰值回流温度(摄氏度):220
认证状态:COMMERCIAL座面最大高度:2 mm
标称供电电压:3.3 V表面贴装:YES
电信集成电路类型:DIGITAL SLIC温度等级:INDUSTRIAL
端子面层:TIN LEAD端子形式:GULL WING
端子节距:0.65 mm端子位置:DUAL
处于峰值回流温度下的最长时间:NOT SPECIFIED宽度:5.3 mm
Base Number Matches:1

AFE1144 数据手册

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®
AFE1144  
AFE1144  
For most current data sheet and other product  
information, visit www.burr-brown.com  
HDSL/MDSL ANALOG FRONT END  
64kbps TO 1168kbps OPERATION  
FEATURES  
LOWER OUT OF BAND PSD  
SCALABLE DATA RATE  
250mW POWER DISSIPATION  
+5V POWER (5V or 3.3V Digital)  
SSOP-28  
PIN COMPATIBLE WITH AFE1124  
DESCRIPTION  
Burr-Brown’s Analog Front End chip greatly reduces  
the size and cost of an xDSL (Digital Subscriber Line)  
system by providing all of the active analog circuitry  
needed to connect a digital signal processor to an  
external compromise hybrid and line transformer. The  
AFE1144 is optimized for HDSL (High bit rate DSL)  
and for lower speed MDSL (Medium speed DSL) and  
RADSL (Rate Adaptive DSL) applications. Because  
the transmit and receive filter responses automatically  
change with clock frequency, the AFE1144 is particu-  
larly suitable for RADSL and multiple rate DSL sys-  
tems. The device operates over a wide range of data  
rates from 64kbps to 1168kbps.  
Functionally, this unit consists of a transmit and a  
receive section. The transmit section generates analog  
signals from 2-bit digital symbol data and filters the  
analog signals to create 2B1Q symbols. The on board  
differential line driver provides a 13.5dBm signal to  
the telephone line. The receive section filters and  
digitizes the symbol data received on the telephone  
line. This IC operates on a single 5V supply. The  
digital circuitry in the unit can be connected to a  
supply from 3.3V to 5V. It is housed in a SSOP-28  
package.  
txLINE  
Pulse Former  
txLINE  
Line Driver  
tx and rx  
Control  
Registers  
tx and rx  
Interface  
Lines  
Difference  
Amplifier  
rxHYB  
rxHYB  
rxLINE  
Decimation  
Filter  
∆Σ  
Modulator  
rxLINE  
Programmable  
Gain Amp  
AFE1144  
Patents Pending  
International Airport Industrial Park  
Mailing Address: PO Box 11400, Tucson, AZ 85734  
Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706  
• Tel: (520) 746-1111  
Twx: 910-952-1111  
Internet: http://www.burr-brown.com/  
Cable: BBRCORP Telex: 066-6491  
FAX: (520) 889-1510 Immediate Product Info: (800) 548-6132  
©1999 Burr-Brown Corporation  
PDS-1575A  
Printed in U.S.A. December, 1999  

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