參數(shù)資料
型號(hào)： XRT73L04
廠商： Exar Corporation
英文描述： 4 Channel E3/DS3/STS-1 Line Interface Unit(4通道 E3/DS3/STS-1線接口單元)
中文描述： 4頻道E3/DS3/STS-1線路接口單元（4通道E3/DS3/STS-1線接口單元）
文件頁(yè)數(shù)： 39/62頁(yè)
文件大?。?/td> 781K
代理商： XRT73L04
á
XRT73L04
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
PRELIMINARY
REV. P1.0.5
35
.
Design Considerations (for DS3 and STS-1 Appli-
cations)
When installing equipment into environments as de-
picted in Figure 21, we recommend the Receive
Equalizer be enabled by setting the REQEN(n) input
pin for Channel(n) or the respective bit-fields to "0".
The only time the Receive Equalizer should be dis-
abled is when an off-chip equalizer is in the Receive
path between the Digital Cross-Connect system and
the RTIP/RRing input pins, or in applications where
the Receiver is monitoring the transmit output signal
directly.
Design Considerations (for E3 Applications or if
the Overall Cable Length is known)
Figure 21 indicates the following.
a. That the length of cable between the Transmitting
Terminal and the Digital Cross-Connect system can
range between 0 and 450 feet.
b. That the length of cable between the Digital Cross-
Connect system and the Receive Terminal can range
between 0 and 450 feet.
Consequently, the overall cable length between the
Transmitting Terminal and the Receiving Terminal can
range between very short cable length (e.g., near 0
feet) up to 900 feet.
If during System Installation the overall cable length is
known, to optimize the performance of the XRT73L04
in terms of receive jitter performance, etc., enable or
disable the Receive Equalizer based upon the follow-
ing recommendations:
As a guideline, the Receive Equalizer should be
turned ON if the Receive Section of a given channel
is going to receive a line signal with an overall cable
length of 300 feet or greater. Conversely, the Receive
Equalizer should be turned OFF if the Receive Sec-
tion of a given channel is going to receive a line signal
over a cable length of less than 300 feet.
N
OTES
:
F
IGURE
21. T
HE
T
YPICAL
A
PPLICATION
FOR
THE
S
YSTEM
I
NSTALLER
Digital Cross-Connect
System
Transmitting
Terminal
Receiving
Terminal
0 to 450 feet of Cable
Pulses that are
compliant to the
Isolated DSX-3 or
STSX-1 Pulse Template
Requirement
0 to 450 feet of
Cable
DSX-3
or
STSX-1
相關(guān)PDF資料
PDF描述
XRT73L06 SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73L06IB SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73LC00A E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73LC00AIV E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73LC03A 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT73L04A 制造商:EXAR 制造商全稱:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04AIV 制造商:EXAR 制造商全稱:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04B 制造商:EXAR 制造商全稱:EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04BES 功能描述:網(wǎng)絡(luò)控制器與處理器 IC RoHS:否 制造商:Micrel 產(chǎn)品:Controller Area Network (CAN) 收發(fā)器數(shù)量: 數(shù)據(jù)速率: 電源電流（最大值）:595 mA 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray
XRT73L04BIV 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 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
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