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參數資料
| 型號： | XRT73L03B |
| 廠商： | Exar Corporation |
| 英文描述： | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| 中文描述： | 三通道DS3/E3/STS-1線路接口單元 |
| 文件頁數： | 1/61頁 |
| 文件大小： | 342K |
| 代理商： | XRT73L03B |
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Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
XRT73L03B
3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT
OCTOBER 2003
REV. 1.0.1
GENERAL DESCRIPTION
The XRT73L03B, 3-Channel, DS3/E3/STS-1 Line In-
terface Unit is a low power CMOS version of the
XRT73L03A and consists of three independent line
transmitters and receivers integrated on a single chip
designed for DS3, E3 or SONET STS-1 applications.
Each channel of the XRT73L03B 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 XRT73L03B 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
Incorporates an improved Timing Recovery circuit
and is pin and functional compatible to XRT73L03A
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
Low power CMOS design
5V tolerant I/O
-40°C to +85°C Operating Temperature Range
Available in a 120 pin LQFP package
APPLICATIONS
Digital Cross Connect Systems
CSU/DSU Equipment
Routers
Fiber Optic Terminals
Multiplexers
ATM Switches
F
IGURE
1. XRT73L03B B
LOCK
D
IAGRAM
ENDECDIS
RLOS_(n)
LLB_(n)
RLB_(n)
TAOS_(n)
TPData_(n)
TNData_(n)
TxClk_(n)
TxLEV_(n)
TxOFF_(n)
Channel 2 - (n) = 2
AGC/
Equalizer
Serial
Processor
Interface
Peak
Detector
LOS Detector
Slicer
Clock
Recovery
Data
Recovery
Invert
Loop MUX
HDB3/
B3ZS
Decoder
LOSTHR_(n)
SDI
SDO
SClk
CS
REGR
RTIP_(n)
RRing_(n)
REQEN_(n)
Channel 0 - (n) = 0
Channel 1 - (n) = 1
Notes: 1. (n) = 0, 1, or 2 for respective Channels
2. Serial Processor Interface input pins are shared by the three 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_(n)
STS-1/DS3_(n)
Host/(HW)
RLOL_(n)
EXClk_(n)
RxOFF
RxClkINV
RxClk_(n)
RPOS_(n)
RNEG_(n)
LCV_(n)
Tx
Control
相關PDF資料 |
PDF描述 |
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| XRT73L03BIV | 3 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| XRT73L04A | 4 CHANNEL DS3/E3/STS-1 LINE INTERFACE UNIT |
| 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 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| XRT73L03BES | 功能描述:網絡控制器與處理器 IC RoHS:否 制造商:Micrel 產品:Controller Area Network (CAN) 收發器數量: 數據速率: 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 |
| XRT73L03BIV | 功能描述:外圍驅動器與原件 - 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 |
| XRT73L03BIV-F | 功能描述:外圍驅動器與原件 - 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 |
| XRT73L03IV | 制造商:EXAR 制造商全稱:EXAR 功能描述:3 CHANNEL E3/DS3/STS-1 LINE INTERFCE UNIT |
| XRT73L03IVS | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Telecommunication IC |
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