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參數資料
| 型號： | XRT75L00D |
| 廠商： | Exar Corporation |
| 英文描述： | E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
| 中文描述： | E3/DS3/STS-1線路接口單元與SONET DESYNCHRONIZER |
| 文件頁數： | 1/92頁 |
| 文件大小： | 894K |
| 代理商： | XRT75L00D |
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Exar
Corporation 48720 Kato Road, Fremont CA, 94538
(510) 668-7000
FAX (510) 668-7017
www.exar.com
XRT75L00D
E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
FEBRUARY 2004
GENERAL DESCRIPTION
REV. 1.0.2
The XRT75L00D is a single-channel fully integrated
Line Interface Unit (LIU) with Sonet Desynchronizer
for E3/DS3/STS-1 applications. It incorporates an
independent
Receiver,
Attenuator in a single 52 pin TQFP package.
The XRT75L00D can be configured to operate in
either E3 (34.368 MHz), DS3 (44.736 MHz) or STS-1
(51.84 MHz) modes. The transmitter can be turned
off (tri-stated) for redundancy support and for
conserving power.
The XRT75L00D’s differential receiver provides high
noise interference margin and is able to receive the
data over 1000 feet of cable or with up to 12 dB of
cable attenuation.
The XRT75L00D incorporates an advanced crystal-
less jitter attenuator that can be selected either in the
transmit or receive path. The jitter attenuator
performance meets the ETSI TBR-24 and Bellcore
GR-499 specifications. Also, the jitter attenuator can
be used for clock smoothing in SONET STS-1 to DS3
de-mapping.
The XRT75L00D provides both Serial Microprocessor
Interface as well as Hardware mode for programming
and control.
The XRT75L00D supports local, remote and digital
loop-backs. The XRT75L00D also contains an on-
board Pseudo Random Binary Sequence (PRBS)
generator and detector with the ability to insert and
detect single bit error.
Transmitter
and
Jitter
FEATURES
RECEIVER:
On chip Clock and Data Recovery circuit for high
input jitter tolerance.
Meets
E3/DS3/STS-1
Requirements.
Detects and Clears LOS as per G.775.
Meets Bellcore GR-499 CORE Jitter Transfer
Requirements.
Receiver Monitor mode handles up to 20 dB flat
loss with 6 dB cable attenuation.
Compliant with jitter transfer template outlined in
ITU G.751, G.752, G.755 and GR-499-CORE,1995
standards.
Meets ETSI TBR 24 Jitter Transfer Requirements.
On chip B3ZS/HDB3 encoder and decoder that can
be either enabled or disabled.
Jitter
Tolerance
On-chip clock synthesizer provides the appropriate
rate clock from a single 12.288 MHz Clock.
Provides low jitter output clock.
TRANSMITTER:
Compliant with Bellcore GR-499, GR-253 and ANSI
T1.102 Specification for transmit pulse
Tri-state Transmit output capability for redundancy
applications
Transmitter can be turned on or off.
JITTER ATTENUATOR:
On chip advanced crystal-less Jitter Attenuator.
Jitter Attenuator can be selected in Receive or
Transmit paths.
16, 32 or 128 bits selectable FIFO size.
Meets the Jitter and Wander specifications
described in T1.105.03b,ETSI TBR-24, Bellcore
GR-253 and GR-499 standards.
Jitter Attenuator can be disabled.
De-Synchronizer for SONET STS-1 to DS-3
demapping.
CONTROL AND DIAGNOSTICS:
5 wire Serial Microprocessor Interface for control
and configuration.
Supports
optional
internal
Monitoring.
PRBS error counter register to accumulate errors.
Hardware Mode for control and configuration.
Supports Local, Remote and Digital Loop-backs.
Single 3.3 V ± 5% power supply.
5 V Tolerant I/O.
Available in 52 pin TQFP.
-40°C to 85°C Industrial Temperature Range.
Transmit
Driver
APPLICATIONS
E3/DS3 Access Equipment.
DSLAMs.
Digital Cross Connect Systems.
CSU/DSU Equipment.
Routers.
相關PDF資料 |
PDF描述 |
|---|---|
| XRT75L00DIV | E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
| XRT75L02 | TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER |
| XRT75L02IV | TWO CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH JITTER |
| XRT75L03D | THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
| XRT75L04D | FOUR CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER |
相關代理商/技術參數 |
參數描述 |
|---|---|
| XRT75L00DES | 功能描述:時鐘合成器/抖動清除器 LIU+DESYNCH 3.3V LIU+DESYNCH 3.3V RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| XRT75L00DIV | 功能描述:外圍驅動器與原件 - PCI 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH 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 |
| XRT75L00DIV-F | 功能描述:外圍驅動器與原件 - PCI 1-Ch DS3, E3, SONET 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 |
| XRT75L00DIVTR | 功能描述:時鐘合成器/抖動清除器 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
| XRT75L00DIVTR-F | 功能描述:時鐘合成器/抖動清除器 3.3V 1 CH E3/DS3/STS W/SONET DE-SYNCH RoHS:否 制造商:Skyworks Solutions, Inc. 輸出端數量: 輸出電平: 最大輸出頻率: 輸入電平: 最大輸入頻率:6.1 GHz 電源電壓-最大:3.3 V 電源電壓-最小:2.7 V 封裝 / 箱體:TSSOP-28 封裝:Reel |
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