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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 32/64頁 |
| 文件大?。?/td> | 360K |
| 代理商： | XRT73LC04AIV |
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XRT73LC04A
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
REV. 1.0.1
28
2.0
Figure 13 indicates that the Transmit Section within
each Channel of the XRT73LC04A consists of the fol-
lowing blocks:
Transmit Logic Block
TxClk_(n) Duty Cycle Adjust Block
HDB3/(B3ZS) Encoder
Pulse Shaping Block
The purpose of the Transmit Section is to take TTL/
CMOS level data from the terminal equipment and
encode it into a format such that it can:
1.
Be efficiently transmitted over coaxial cable at
E3, DS3, or STS-1 data rates.
2.
Be reliably received by the Remote Terminal
Equipment at the other end of the E3, DS3, or
STS-1 data link.
3.
Comply with the applicable pulse template
requirements.
THE TRANSMIT SECTION
2.1
The purpose of the Transmit Logic Block is to accept
either Dual-Rail or Single-Rail (e.g., a binary data
stream) TTL/CMOS level data and timing information
from the Terminal Equipment.
2.1.1
Accepting Dual-Rail Data from the Termi-
nal Equipment
Whenever the XRT73LC04A accepts Dual-Rail data
from the Terminal Equipment, it does so via the fol-
lowing input signals:
TPData_(n)
TNData_(n)
TxClk_(n)
Figure 14 illustrates the typical interface for the trans-
mission of data in a Dual-Rail Format between the
Terminal Equipment and the Transmit Section of the
XRT73LC04A.
T
HE
T
RANSMIT
L
OGIC
B
LOCK
The manner that the LIU handles Dual-Rail data is
described below and illustrated in Figure 15. The
Transmit Section (of a Channel) typically samples the
data on the TPData_(n) and TNData_(n) input pins
on the falling edge of TxClk_(n).
F
IGURE
14. T
HE
TYPICAL
INTERFACE
FOR
THE
T
RANSMISSION
OF
D
ATA
IN
A
D
UAL
-R
AIL
F
OR
-
MAT
FROM
THE
T
RANSMITTING
T
ERMINAL
E
QUIPMENT
TO
THE
T
RANSMIT
S
ECTION
OF
A
CHANNEL
Terminal
Equipment
(E3/DS3 or STS-1
Framer)
Exar E3/DS3/STS-1 LIU
Transmit
Logic
Block
TxPOS
TxNEG
TxLineClk
TPData
TNData
TxClk
F
IGURE
15. T
HE
XRT73LC04A S
AMPLES
THE
DATA
ON
THE
TPD
ATA
AND
TND
ATA
INPUT
PINS
TxClk
TPData
TNData
Data 1 1 0
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| XRT73R12 | TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
| XRT73R12IB | TWELVE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT |
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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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