參數(shù)資料
型號(hào)： XRT73LC04AIV
廠商： EXAR CORP
元件分類： 數(shù)字傳輸電路
英文描述： 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
中文描述： DATACOM, PCM TRANSCEIVER, PQFP144
封裝： 20 X 20 MM, 1.40 MM HEIGHT, TQFP-144
文件頁(yè)數(shù)： 35/64頁(yè)
文件大小： 360K
代理商： XRT73LC04AIV
XRT73LC04A
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 1.0.1
31
a. Operating in the HOST Mode.
When the XRT73LC04A is operating in the HOST
Mode, then the HDB3/B3ZS Encoders within each
channel can be individually enabled or disabled.
Disable the HDB3/B3ZS Encoder block within Chan-
nel(n) by setting the
(SR/DR)_(n)
bit-field within Com-
mand Register (CR3-(n)) to "1" as illustrated below.
N
OTE
:
This method can only be used if the XRT73LC04A is
operating in the HOST Mode.
If either of these methods are used to disable the
HDB3/B3ZS Encoder, then the LIU transmits the data
as received via the TPData_(n) and TNData_(n) input
pins.
2.4
T
HE
T
RANSMIT
P
ULSE
S
HAPING
C
IRCUITRY
The Transmit Pulse Shaper Circuitry consists of a
Transmit Line Build-Out circuit which can be enabled
or disabled by setting the TxLEV_(n) input pin or
TxLEV_(n) bit-field to “High”or "Low". The purpose of
the Transmit Line Build-Out circuit is to permit config-
uration of each channel to transmit an output pulse
which is compliant to either of the following pulse
template requirements when measured at the Digital
Cross Connect System. Each of these Bellcore spec-
ifications state that the cable length between the
Transmit Output and the Digital Cross Connect sys-
tem can range anywhere from 0 to 450 feet.
The Isolated DSX-3 Pulse Template Requirement per
Bellcore GR-499-CORE is illustrated in Figure 19 and
the Isolated STSX-1 Pulse Template Requirement
per Bellcore GR-253-CORE is illustrated in Figure 20.
COMMAND REGISTER CR3-(n)
D4
D3
D2
D1
D0
(SR/DR)_(n)
LOSMUT_(n)
RxOFF
RxClk_(n)INV
Reserved
1
X
X
X
X
F
IGURE
19. T
HE
B
ELLCORE
GR-499-CORE T
RANSMIT
O
UTPUT
P
ULSE
T
EMPLATE
FOR
DS3 A
PPLICATIONS
DS3 Pulse Template
-0.2
0
0.2
0.4
0.6
0.8
1
1.2
-1
-09
-08
-07
-06
-05
-04
-03
-02
-01
0
01
02
03
04
05
06
07
08
09
1
11
12
13
14
Time, in UI
N
Lower Curve
Upper Curve
相關(guān)PDF資料
PDF描述
XRT73R06 SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73R06IB SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73R12 TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73R12IB TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT74L73 3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
XRT73LC04AIV-F 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 4-Ch DS3, E3, STS-1 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
XRT73R06 制造商:EXAR 制造商全稱:EXAR 功能描述:SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT
XRT73R06ES 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
XRT73R06IB 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
XRT73R06IB-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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