參數(shù)資料
型號(hào): 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(yè)數(shù): 11/28頁(yè)
文件大?。?/td> 292K
代理商: XRT59L91
XRT59L91
11
Rev. P2.00
Preliminary
With input signal as described above, the XRT59L91
device will take each mark (which is provided to it via the
“Transmit Input Interface” block, and will generate a
pulse that complies with the pulse template, presented
in Figure 4 (when measured on the secondary-side of
the Transmit Output Transformer).
1.2
Interfacing the Transmit Section of the
XRT59L91 device to the Line
ITU-T G.703 specifies that the E1 line signal can be
transmitted over coaxial cable and terminated with 75
W
or transmitted over twisted-pair and terminated with
120
W
.
In both applications (e.g., 75
W
or 120
W
), the user is
advised to interface the Transmitter to the Line, in the
manner as depicted in Figures 5 and 6, respectively.
Figure 5. Illustration of how to interface the Transmit Section of the
XRT59L91 device to the Line (for “75
W
” Applications)
U
1
XRT59L91
TTIP
1
3
TRing
1
5
TxPOS
2
TxNEG
3
TxClk
1
R
1
9.
1
1
2
R
2
9.
1
1
2
1:
2
PE-
65835
1
5
4
8
J
1
BN
C
1
2
TxPOS
TxNEG
TxLineClk
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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(dòng)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(dòng)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(dòng)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