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參數(shù)資料
| 型號： | XRT73L04AIV |
| 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, HEAT SINK, TQFP-144 |
| 文件頁數(shù)： | 9/65頁 |
| 文件大?。?/td> | 366K |
| 代理商： | XRT73L04AIV |
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XRT73L04A
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 2.0.3
5
44
43
137
138
TxLEV_0
TxLEV_1
TxLEV_2
TxLEV_3
I
Transmit Line Build-Out Enable/Disable Select - Channel (n):
This input pin permits the Transmit Line Build-Out circuit, within Channel
(n), to be enabled or disabled. In E3 mode, this pin has no effect on the
transmit pulse shape.
Setting this pin to "High" disables the Line Build-Out circuit. In this
mode, Channel (n) outputs partially-shaped pulses onto the line via the
TTIP_(n) and TRing_(n) output pins.
Setting this pin to "Low" enables the Line Build-Out circuit within Chan-
nel (n). In this mode, Channel (n) outputs shaped pulses onto the line
via the TTIP_(n) and TRing_(n) output pins.
To comply with the Isolated DSX-3/STSX-1 Pulse Template Require-
ments per Bellcore GR-499-CORE or Bellcore GR-253-CORE:
1. Set this input pin to "1" if the cable length between the Cross-Connect
and the transmit output of Channel (n) is greater than 225 feet.
2. Set this input pin to "0" if the cable length between the Cross-Connect
and the transmit output of Channel (n) is less than 225 feet.
This pin is active only if the following two conditions are true:
a. The XRT73L04A is configured to operate in either the DS3 or SONET
STS-1 Modes.
b. The XRT73L04A is configured to operate in the Hardware Mode.
N
OTE
:
This pin to should be tied to GND if the XRT73L04A is going to be
operating in the HOST Mode, (internally pulled-down).
131
TxOFF
I
Transmitter OFF Input:
Setting this input pin "High" turns off all of the Transmitter Sections. In
this mode the TTIP and TRing outputs are tri-stated.
N
OTES
:
1. This input pin controls the TTIP and TRing outputs even when
the XRT73L04A is operating in the HOST Mode.
2. For HOST Mode Operation, this pin is tied to GND if the Trans-
mitter is intended to be turned off via the Microprocessor Serial
Interface.
TRANSMIT INTERFACE
P
IN
#
N
AME
T
YPE
D
ESCRIPTION
相關PDF資料 |
PDF描述 |
|---|---|
| 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 |
| XRT73L06IB | SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 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 安裝風格:SMD/SMT 封裝 / 箱體:PBGA-400 封裝:Tray |
| XRT73L04BIV | 功能描述:外圍驅(qū)動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT73L04BIV-F | 功能描述:外圍驅(qū)動器與原件 - PCI RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray |
| XRT73L06 | 制造商:EXAR 制造商全稱:EXAR 功能描述:SIX CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
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