音影先锋亚洲天堂网|电影世界尽头的爱完整版播放|国产 熟女 91|高清无码免费观看欧美日韩|韩国一区二区三区黄色录像|美女亚洲加勒比在线|亚洲综合网 开心五月|7x成人在线入口|成人网站免费日韩毛片区|国产黄片?一级?二级?三级

XRT75L03DIV Datasheet

  • XRT75L03DIV

  • Telecomm/Datacomm

  • 2頁

  • ETC

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預(yù)覽

謾莽
APRIL 2002
PRELIMINARY
XRT75L03D
REV. P1.0.0
THREE-CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER
鈥?/div>
Meets Jitter Tolerance Requirements, as specified
in ITU-T G.823_1993 for E3 Applications
鈥?/div>
Meets Jitter Tolerance Requirements, as specified
in Bellcore GR-499-CORE for DS3 Applications
GENERAL DESCRIPTION
The XRT75L03D is a Three-Channel fully integrated
Line Interface Unit (LIU) and Jitter Attenuator for E3/
DS3/STS-1 applications. It incorporates three
independent Receivers, Transmitters and Jitter
Attenuators in a single 128-Lead QFP package.
Each channel of the XRT75L03D can be
independently configured to operate in E3 (34.368
MHz), DS3 (44.736 MHz) or STS-1 (51.84 MHz)
rates. Each transmitter can be turned off and tri-
stated for redundancy support and power
conservation.
The XRT75L03D鈥檚 differential receivers provide high
noise interference margin and are able to receive the
data over 1000 feet of cable, or with cable attenuation
of up to 12 dB.
The XRT75L03D incorporates an advanced crystal-
less jitter attenuator per channel that can be selected
either in the transmit or receive path. The jitter attenu-
ator performance meets the ETSI TBR-24 and
Bellcore GR-499 specifications. Also the jitter attenu-
ator can be used for clock smoothing in SONET STS-
1 to DS3 de-mapping.
The XRT75L03D provides both Serial Microprocessor
Interface as well as Hardware mode for programming
and control.
The XRT75L03D supports local,remote and digital
loop-backs. The XRT75L03D also contains an on-
board Pseudo Random Binary Sequence (PRBS)
generator and detector with the ability to insert and
detect single bit error.
FEATURES
Receiver:
鈥?/div>
On chip Clock and Data Recovery circuit for high
input jitter tolerance
鈥?/div>
Meets E3/DS3/STS-1 Jitter Tolerance Require-
ments
鈥?/div>
Detects and Clears LOS as per G.775
鈥?/div>
Receiver Monitor mode handles up to 20 dB flat
loss with 6 dB cable attenuation
鈥?/div>
On chip B3ZS/HDB3 encoder and decoder that can
be either enabled or disabled
鈥?/div>
On-chip Clock Synthesizer generates the appropri-
ate rate clock from a single frequency Crystal
鈥?/div>
Provides low jitter clock outputs for either E3, DS3
or STS-1 rates
Transmitter:
鈥?/div>
Compliant with Bellcore GR-499, GR-253 and ANSI
T1.102 Specification for transmit pulse
鈥?/div>
Tri-state Transmit output capability for redundancy
applications
鈥?/div>
Transmitter can be turned on or off
Jitter Attenuator:
鈥?/div>
On chip advanced crystal-less Jitter Attenuators
鈥?/div>
Jitter Attenuators can be selected in Receive or
Transmit paths
鈥?/div>
Compliant with jitter transfer template outlined in
ITU G.751, G.752, G.755, GR-253 and GR-499-
CORE,1995 standards
鈥?/div>
Meets ETSI TBR 24 Jitter Transfer Requirements
鈥?/div>
16, 32 or 128 bits selectable FIFO size
鈥?/div>
De-Synchronizer for SONET STS-1 to DS3 de-
mapping
鈥?/div>
Meets the Jitter and Wander
described in the ANSI T1.105.03b
鈥?/div>
Jitter Attenuators can be disabled
specifications
Control and Diagnostics:
鈥?/div>
5 wire Serial Microprocessor Interface for control
and configuration
鈥?/div>
Supports optional internal Transmit Driver Monitor-
ing
鈥?/div>
PRBS Error Counter Register to accumulate errors
鈥?/div>
Hardware Mode for control and configuration
鈥?/div>
Supports Local, Remote and Digital Loop-backs
鈥?/div>
Single 3.3 V 鹵 5% power supply
鈥?/div>
5 V Tolerant I/O
鈥?/div>
Available in 128 pin TQFP
鈥?/div>
-40擄C to 85擄C Industrial Temperature Range
APPLICATIONS
鈥?/div>
E3/DS3 Access Equipment
鈥?/div>
STS1-SPE to DS3 Mapper
鈥?/div>
DSLAMs
鈥?/div>
Digital Cross Connect Systems
鈥?/div>
CSU/DSU Equipment
鈥?/div>
Routers
鈥?/div>
Fiber Optic Terminals
Exar
Corporation 48720 Kato Road, Fremont CA, 94538
鈥?/div>
(510) 668-7000
鈥?/div>
FAX (510) 668-7017
鈥?/div>
www.exar.com

XRT75L03DIV 產(chǎn)品屬性

  • XRT75L03D

  • 72

  • 集成電路 (IC)

  • 接口 - 驅(qū)動器，接收器，收發(fā)器

  • -

  • 線路接口裝置（LIU）

  • 3/3

  • DS3，E3，STS-1

  • 3.135 V ~ 3.465 V

  • 表面貼裝

  • 128-LQFP 裸露焊盤

  • 128-LQFP（14x20）

  • 托盤

XRT75L03DIV相關(guān)型號PDF文件下載

掃碼下載APP，
一鍵連接廣大的電子世界。

在線人工客服

買家服務(wù)：
賣家服務(wù)：
技術(shù)客服：

0571-85317607

網(wǎng)站技術(shù)支持

13606545031

客服在線時間周一至周五
9:00-17:30

關(guān)注官方微信號，
第一時間獲取資訊。

建議反饋

聯(lián)系人：

聯(lián)系方式：

按住滑塊，拖拽到最右邊
>>
感謝您向阿庫提出的寶貴意見，您的參與是維庫提升服務(wù)的動力！意見一經(jīng)采納，將有感恩紅包奉上哦！