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參數(shù)資料
| 型號： | 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） |
| 文件頁數(shù)： | 1/62頁 |
| 文件大?。?/td> | 781K |
| 代理商： | XRT73L04 |
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Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
á
PRELIMINARY
XRT73L04
4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
SEPTEMBER 2000
REV. P1.0.5
GENERAL DESCRIPTION
The XRT73L04, 4-Channel, DS3/E3/STS-1 Line In-
terface Unit consists of four independent line trans-
mitters and receivers integrated on a single chip de-
signed for DS3, E3 or SONET STS-1 applications.
Each channel of the XRT73L04 can be configured to
support the E3 (34.368 Mbps), DS3 (44.736 Mbps) or
the SONET STS-1 (51.84 Mbps) rates. Each channel
can be configured to operate in a mode/data rate that
is independent of the other channels.
In the transmit direction, each channel encodes input
data to either B3ZS (DS3/STS-1) or HDB3 (E3) for-
mat and converts the data into the appropriate pulse
shapes for transmission over coaxial cable via a 1:1
transformer.
In the receive direction, the XRT73L04 performs
equalization on incoming signals, performs Clock Re-
covery, decodes data from either B3ZS or HDB3 for-
mat, converts the receive data into TTL/CMOS for-
mat, checks for LOS or LOL conditions and detects
and declares the occurrence of Line Code Violations.
FEATURES
Meets E3/DS3/STS-1 Jitter Tolerance Require-
ments
Contains a 4-Wire Microprocessor Serial Interface
Full Loop-Back Capability
Transmit and Receive Power Down Modes
Full Redundancy Support
Uses Minimum External components
Single +3.3V Power Supply
5V tolerant I/O
-40°C to +85°C Operating Temperature Range
Available in a Thermally Enhanced 144 pin TQFP
package
APPLICATIONS
Digital Cross Connect Systems
CSU/DSU Equipment
Routers
Fiber Optic Terminals
Multiplexers
ATM Switches
F
IGURE
1. XRT73L04 B
LOCK
D
IAGRAM
RLOS(n)
LLB(n)
RLB(n)
TAOS(n)
TPData(n)
TNData(n)
TxClk(n)
TxLEV(n)
TxOFF
Channel 2
AGC/
Equalizer
Serial
Processor
Interface
Peak
Detector
LOS Detector
Slicer
Clock
Recovery
Data
Recovery
Invert
Loop MUX
HDB3/
B3ZS
Decoder
LOSTHR
SDI
SDO
SClk
CS/(SR/DR)
REGR
RTIP(n)
RRing(n)
REQEN(n)
Channel 0
Channel 1
Notes: 1. (n) = 0, 1, 2 , or 3 for respective Channels
2. Serial Processor Interface input pins are shared by the four Channels in HOST Mode and redefined in
Hardware Mode.
Device
Monitor
MTIP(n)
MRing(n)
DMO(n)
Transmit
Logic
Duty Cycle Adjust
TTIP(n)
TRing(n)
Pulse
Shaping
HDB3/
B3ZS
Encoder
E3_Ch(n)
STS-1/DS3_Ch(n)
Host/(HW)
RLOL(n)
EXClk(n)
RxOFF
RxClkINV
RxClk(n)
RPOS(n)
RNEG(n)/
(LCV(n))
Channel 3
Tx
Control
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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