參數(shù)資料
型號: XRT59L91
廠商: Exar Corporation
英文描述: Single-Chip E1 Line Interface Unit(單片E1 線接口單元)
中文描述: 單芯片E1線路接口單元(單片素E1線接口單元)
文件頁數(shù): 14/28頁
文件大小: 292K
代理商: XRT59L91
XRT59L91
14
Rev. P2.00
Preliminary
2.0 The Receive Section
The Receive Section of the XRT59L91 device consists
of the following blocks:
l
The “Receive Equalizer” block
The “Peak Detector” and “Slicer” block
The “LOS Detector” block
The “Receive Output Interface” block
l
l
l
2.1 Interfacing the Receive Section to the Line
The design of the XRT59L91 device permits the user
to transformer-couple or capacitive-couple the Re-
ceive Section to the line. Additionally, as mentioned
earlier, the specification documents for E1 specify
75
W
termination loads, when transmitting over coaxial
cable, and 120
W
loads, when transmitting over twisted-
pair. Figures 7 through 9 present the various methods
that the user can employ in order to interface the
Receiver (of the XRT59L91 device) to the line.
U1
XRT59L91
RTIP
9
RRing
10
RxPOS
6
RxNEG
7
RxLOS
8
1:2
PE-65835
1
5
4
8
RL
18.7
1
2
J1
BNC
1
2
Loss of Signal
RxNEG
RxPOS
Figure 7. Recommended Schematic for Interfacing the Receive Section of the XRT59L91
Device to the Line for 75
W
Applications (Transformer-Coupling)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT59L91ES 功能描述:外圍驅(qū)動器與原件 - PCI 1 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(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT59L91ID 制造商:Exar Corporation 功能描述:
XRT59L91ID-F 功能描述:外圍驅(qū)動器與原件 - PCI 3.3V or 5V Sngl E1 temp -45 to 85C RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT59L91IDTR-F 功能描述:外圍驅(qū)動器與原件 - PCI SNGLCHANNELE1LIU RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
XRT59L921 制造商:EXAR 制造商全稱:EXAR 功能描述:TWENTY-ONE CHANNEL E1 LINE INTERFACE UNIT