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參數資料
| 型號： | XR-T5793 |
| 廠商： | Exar Corporation |
| 英文描述： | Quad E1 Line Interface Unit |
| 中文描述： | 四路E1線路接口單元 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 177K |
| 代理商： | XR-T5793 |
XR-T5793
Quad E1
Line Interface Unit
...the analog plus company
TM
Rev. 2.00
1995
EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 (510) 668-7000 FAX (510) 668-7017
1
June 1997-3
FEATURES
Meets CCITT G.703 Pulse Mask Template for
2.048Mbps (E1) Rates
Transmitter and Receiver Interfaces Can Be:
– Single Ended, 75
Capacitive or Transformer
Coupled
– Balanced, 100
or 120
Transformer Coupled
Minimum Return Loss is 20dB (Receive) and 18dB
(Transmit), Exceeds G.703 and ETSI 300 166
Specifications
Bipolar Outputs Can Be Disabled Individually (High
Z Outputs)
System Interface is TTL Compatible on Digital Input
and TTL/CMOS Compatible on Digital Output Pins
Individual Channel Loss of Signal Detection, Local
and Remote Digital Loopback
Low Power, CMOS Technology
Over-Temperature Protection
APPLICATIONS
Multi-Line E1 Interface Cards
E1 Network Equipment
– Multiplexers
– Cross Connects
– Switching Systems
Fault Tolerant Systems
GENERAL DESCRIPTION
The XR-T5793 is an optimized line interface unit, built
using low power CMOS technology. This device contains
four independent E1 channels for primary rate, PCM
applications up to 2.048Mbps. Each channel performs
the driver and receiver functions necessary to convert
bipolar signals to TTL/CMOS compatible logic levels and
vice versa. The device supports single ended or balanced
line interfaces on each channel, thereby providing the
user an option of reducing system cost and board space
by replacing the transformer with a capacitor.
Each of the four drivers can be independently disabled,
allowing
maximum
flexibility
management. Output pulses are fully CCITT G.703
compliant. Moreover, the return loss is at least 18dB over
a frequency range of 51kHz to 3.072MHz.
in
system
power
The slicing circuit in the receive path is able to tolerate a
maximum of 12dB of cable loss with a minimum input
sensitivity of 600mV over the operating temperature
range. Return loss on the receive interfaces is minimum
20dB from 51kHz to 3.072MHz.
Local and remote loopbacks can be performed on any of
the four channels. A separate loss of signal (LOS)
detection circuitry and a LOS pin is provided for each
input.
The XR-T5793 is targeted for multi-line E1 line card
applications where real estate and low power
consumption are critical. Also, the device may be used in
T1 applications (1.544Mbps) which do not require
meeting the DSX-1 cross connect pulse template. The
XR-T5793 is pin compatible with the XR-T5794, which
supports a fifth channel. The fifth channel is for
redundancy and dedicated monitoring on any of the eight
bipolar paths.
ORDERING INFORMATION
Part No.
XR-T5793IJ
Package
68 Lead PLCC
Operating
Temperature Range
-40
°
C to +85
°
C
-40
°
C to +85
°
C
XR-T5793IV
80 Lead TQFP (14 x 14 x 1.4 mm)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| XRT5793ES-TQFP | 功能描述:外圍驅動器與原件 - PCI 4 CH E1 AFE RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XR-T5793IJ | 制造商:EXAR 制造商全稱:EXAR 功能描述:Quad E1 Line Interface Unit |
| XRT5793IJ-F | 功能描述:外圍驅動器與原件 - PCI Quad E1 LIU RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT5793IV | 功能描述:外圍驅動器與原件 - PCI Quad E1 LIU RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XR-T5793IV | 制造商:EXAR 制造商全稱:EXAR 功能描述:Quad E1 Line Interface Unit |
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