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| 型号： | XRT7295ATIW-F |
| 厂商： | Exar Corporation |
| 文件页数： | 1/18页 |
| 文件大小： | 0K |
| 描述： | IC LINE RCVR 20SOJ |
| 标准包装： | 36 |
| 类型： | 接收器 |
| 驱动器/接收器数： | 1/1 |
| 规程： | DS3，STS-1 |
| 电源电压： | 4.75 V ~ 5.25 V |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-BSOJ |
| 供应商设备封装： | 20-SOJ |
| 包装： | 管件 |
| 其它名称： | 1016-1356-5 |
XRT7295AT
DS3/Sonet STS-1
Integrated Line Receiver
Rev. 1.20
E
2000
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z FAX (510) 668-7017
December 2000-2
FEATURES
D
Fully Integrated Receive Interface for DS3 and
STS-1 Rate Signals
D
Integrated Equalization (Optional) and Timing
Recovery
D
Loss-of-Signal and Loss-of-Lock Alarms
D
Variable Input Sensitivity Control
D
5V Power Supply
D
Pin Compatible with XRT7295AE and XRT7295AC
D
Companion Device to T7296 Transmitter
APPLICATIONS
D
Interface to DS-3 Networks
D
Digital Cross-Connect Systems
D
CSU/DSU Equipment
D
PCM Test Equipment
D
Fiber Optic Terminals
GENERAL DESCRIPTION
The XRT7295AT DS3/SONET STS-1 integrated line
receiver is a fully integrated receive interface that
terminates a bipolar DS3 (44.736Mbps) or Sonet STS-1
(51.84Mbps) signal transmitted over coaxial cable. (See
Figure 13
).
The device also provides the functions of receive
equalization (optional), automatic-gain control (AGC),
clock-recovery and data retiming, loss-of-signal and
loss-of-frequency-lock detection.
The digital system
interface is dual-rail, with received positive and negative
1s appearing as unipolar digital signals on separate
output leads. The on-chip equalizer is designed for cable
distances of 0 to 450ft. from the cross-connect frame to
the device. The receive input has a variable input
sensitivity control, providing three different sensitivity
settings, to adapt longer cables. High input sensitivity
allows for significant amounts of flat loss within the
system. Figure 1 shows the block diagram of the device.
The XRT7295AT device is manufactured using linear
CMOS technology. The XRT7295AT is available in a
20-pin plastic SOJ package for surface mounting.
Two versions of the chip are available, one is for either
DS3 or STS-1 operation (the XRT7295AT, this data
sheet), and the other is for E3 operation (the XRT7295AE,
refer to the XRT7295AE data sheet). Both versions are
pin compatible.
For either DS3 or STS-1, an input reference clock at
44.736MHz or 51.84MHz provides the frequency
reference for the device.
ORDERING INFORMATION
Part No.
Package
Operating
Temperature Range
XRT7295ATIW
20 Lead 300 Mil JEDEC SOJ
-40°C to + 85°C
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XRT7295ATIW-F | 制造商:Exar Corporation 功能描述:T3/E3 LIU IC |
| XRT7295ATIWTR | 功能描述:外围驱动器与原件 - PCI RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| XRT7295ATIWTR-F | 功能描述:外围驱动器与原件 - PCI RoHS:否 制造商:PLX Technology 工作电源电压: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:FCBGA-1156 封装:Tray |
| XRT7295CTIW | 功能描述:总线接收器 DS3/E3/SONET STS-1 Line Receiver RoHS:否 制造商:Texas Instruments 接收机数量:4 接收机信号类型:Differential 接口类型:EIA/TIA-422-B, V.11 工作电源电压:3.3 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-16 封装:Reel |
| XRT7295CTIW-F | 功能描述:总线接收器 DS3/E3/SONET STS-1 Line Receiver RoHS:否 制造商:Texas Instruments 接收机数量:4 接收机信号类型:Differential 接口类型:EIA/TIA-422-B, V.11 工作电源电压:3.3 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-16 封装:Reel |
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