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參數資料
| 型號： | XR-T7295IP |
| 廠商： | EXAR CORP |
| 元件分類： | 數字傳輸電路 |
| 英文描述： | DS3/Sonet STS-1 Integrated Line Receiver |
| 中文描述： | RECEIVER, PDIP20 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-20 |
| 文件頁數： | 1/20頁 |
| 文件大小： | 226K |
| 代理商： | XR-T7295IP |
XR-T7295
DS3/Sonet STS-1
Integrated Line Receiver
...the analog plus company
TM
Rev. 1.05
1992
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 (510) 668-7000 FAX (510) 668-7017
1
June 1997-3
FEATURES
Fully Integrated Receive Interface for DS3 and
STS-1 Rate Signals
Integrated Equalization (Optional) and Timing
Recovery
Loss-of-Signal and Loss-of-Lock Alarms
Variable Input Sensitivity Control
5V Power Supply
Pin Compatible with XR-T7295E
Companion Device to T7296 Transmitter
APPLICATIONS
Interface to DS-3 Networks
Digital Cross-Connect Systems
CSU/DSU Equipment
PCM Test Equipment
Fiber Optic Terminals
GENERAL DESCRIPTION
The XR-T7295 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 1shows the block diagram of the device.
The XR-T7295 device is manufactured using linear
CMOS technology. The XR-T7295 is available in either a
20-pin plastic DIP or 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 XR-T7295, this data sheet),
and the other is for E3 operation (the XR-T7295E, refer to
the XR-T7295E 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.
XR-T7295IP
Package
Operating
Temperature Range
-40
°
C to + 85
°
C
-40
°
C to + 85
°
C
20 Lead 300 Mil PDIP
XR-T7295IW
20 Lead 300 Mil JEDEC SOJ
相關PDF資料 |
PDF描述 |
|---|---|
| XR-T7295 | DS3/Sonet STS-1 Integrated Line Receiver |
| XR-T7295IW | DS3/Sonet STS-1 Integrated Line Receiver |
| XR-T7296 | DS3/STS-1, E3 Integrated Line Transmitter |
| XR-T7296IP | DS3/STS-1, E3 Integrated Line Transmitter |
| XR-T7296IW | DS3/STS-1, E3 Integrated Line Transmitter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| XR-T7295IW | 制造商:EXAR 制造商全稱:EXAR 功能描述:DS3/Sonet STS-1 Integrated Line Receiver |
| XR-T7295SIP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ATM/SONET Receiver |
| XR-T7295SIW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:ATM/SONET Receiver |
| XR-T7295TIP | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM Receiver |
| XR-T7295TIW | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCM Receiver |
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