參數(shù)資料
型號(hào)： XRT73L04A
廠商： Exar Corporation
英文描述： 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
中文描述： 4通道DS3/E3/STS-1線路接口單元
文件頁(yè)數(shù)： 48/65頁(yè)
文件大?。?/td> 366K
代理商： XRT73L04A
XRT73L04A
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 2.0.3
44
In some applications it is not desirable for a channel
within the E3/DS3/STS-1 LIU to recover data and
route it to the Receiving Terminal while the channel is
declaring an LOS condition. Consequently, the
XRT73L04A includes an LOS Muting feature. This
feature, if enabled, causes a given channel to halt
transmission of the recovered data to the Receiving
Terminal while the LOS condition is "true". In this
case, the RPOS_(n) and RNEG_(n) output pins are
forced to "0". Once the LOS condition has been
cleared, then the channel(n) resumes normal trans-
mission of the recovered data to the Receiving Termi-
nal.
This feature is available whenever XRT73L04A is op-
erating in the HOST Mode or Hardware Mode.
a. Operating in the Hardware Mode.
The Muting upon LOS feature is enabled by pulling
the LOSMUTEN output pin “High". This enables the
Muting upon LOS feature globally for all channels.
b. Operating in the HOST Mode.
The Muting upon LOS feature for each Channel can
be enabled by writing a "1" into the LOSMUT_(n) bit-
field within Command Register 3.
N
OTE
:
This step only enables the Muting upon LOS feature
within Channel(n).
3.6
R
OUTING
THE
R
ECOVERED
T
IMING
AND
D
ATA
I
NFORMATION
TO
THE
R
ECEIVING
T
ERMINAL
E
QUIPMENT
Each channel ultimately takes the Recovered Timing
and Data information, converts it into CMOS levels
and routes it to the Receiving Terminal Equipment via
the RPOS_(n), RNEG_(n) and RxClk_(n) output pins.
Each channel can deliver the recovered data and
clock information to the Receiving Terminal in either a
Single-Rail or Dual-Rail format.
3.6.1
Receiving Terminal Equipment
Whenever a channel delivers Dual-Rail format to the
Terminal Equipment, it does so via the following sig-
nals.
RPOS_(n)
RNEG_(n)
RxClk_(n)
Figure 29 illustrates the typical interface for the trans-
mission of data in a Dual-Rail Format from the Re-
ceive Section of a channel to the Receiving Terminal
Equipment.
Routing Dual-Rail Format Data to the
.
The manner that a given channel transmits Dual-Rail
data to the Receiving Terminal Equipment is de-
scribed below and illustrated in Figure 30. Each
channel(n) typically updates the data on the
COMMAND REGISTER CR3-(n)
D4
D3
D2
D1
D0
(SR/DR)_(n)
LOSMUT_(n)
RxOFF
RxClk_(n)INV
Reserved
X
1x
x
x
x
F
IGURE
29. T
HE
TYPICAL
INTERFACE
FOR
THE
T
RANSMISSION
OF
D
ATA
IN
A
D
UAL
-R
AIL
F
ORMAT
,
FROM
THE
R
ECEIVE
S
ECTION
OF
THE
XRT73L04A
TO
THE
R
ECEIVING
T
ERMINAL
E
QUIPMENT
Terminal
Equipment
(E3/DS3 or STS-1
Framer)
Exar E3/DS3/STS-1 LIU
Receive
Logic
Block
RxPOS
RxNEG
RxClk
RPOS
RNEG
RxClk
相關(guān)PDF資料
PDF描述
XRT73L04AIV 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04B 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04BIV 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04 4 Channel E3/DS3/STS-1 Line Interface Unit(4通道 E3/DS3/STS-1線接口單元)
XRT73L06 SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT73L04AIV 制造商:EXAR 制造商全稱(chēng):EXAR 功能描述:4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
XRT73L04B 制造商:EXAR 制造商全稱(chēng):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
XRT73L04BIV-F 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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