Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.NET

X  

XRT79L71 Datasheet(PDF) 1 Page - Exar Corporation

Part # XRT79L71
Description  1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - HARDWARE
Download  109 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT79L71 Datasheet(HTML) 1 Page - Exar Corporation

  XRT79L71_07 Datasheet HTML 1Page - Exar Corporation XRT79L71_07 Datasheet HTML 2Page - Exar Corporation XRT79L71_07 Datasheet HTML 3Page - Exar Corporation XRT79L71_07 Datasheet HTML 4Page - Exar Corporation XRT79L71_07 Datasheet HTML 5Page - Exar Corporation XRT79L71_07 Datasheet HTML 6Page - Exar Corporation XRT79L71_07 Datasheet HTML 7Page - Exar Corporation XRT79L71_07 Datasheet HTML 8Page - Exar Corporation XRT79L71_07 Datasheet HTML 9Page - Exar Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 1 / 109 page
background image
Exar Corporation 48720 Kato Road, Fremont CA, 94538 (510) 668-7000 FAX (510) 668-7017 www.exar.com
XRT79L71
1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC - HARDWARE
JUNE 2007
REV. 1.0.0
GENERAL DESCRIPTION
The XRT79L71 is a single channel, ATM UNI/PPP
Physical Layer Processor with integrated DS3/E3
framing controller and Line Interface Unit with Jitter
Attenuator that is designed to support ATM direct
mapping and cell delineation as well as PPP mapping
and Frame processing. For ATM UNI applications,
this device provides the ATM Physical Layer (Physi-
cal Medium Dependent and Transmission Conver-
gence sub-layers) interface for the public and private
networks at DS3/E3 rates. For Clear-Channel Framer
applications, this device supports the transmission
and reception of “user data” via the DS3/E3 payload.
The
XRT79L71
includes
DS3/E3
Framing,
Line
Interface Unit with Jitter Attenuator that supports
mapping of ATM or HDLC framed data. A flexible
parallel
microprocessor
interface
is
provided
for
configuration and control. Industry standard UTOPIA II
and POS-PHY interface are also provided.
GENERAL FEATURES:
Integrated T3/E3 Line Interface Unit
Integrated Jitter Attenuator that can be selected
either in Receive or Transmit path
Flexible integrated Clock Multiplier that takes single
frequency clock and generates either DS3 or E3
frequency.
8/16 bit UTOPIA Level I and II and PPP Multi-PHY
Interface operating at 25, 33 or 50 MHz.
HDLC Controller that provides the mapping/
extraction
of
either
bit
or
byte
mapped
encapsulated packet from DS3/E3 Frame.
Contains on-chip 16 cell FIFO (configurable in
depths of 4, 8, 12 or 16 cells), in both the Transmit
(TxFIFO) and Receive Directions (RxFIFO)
Contains on-chip 54 byte Transmit and Receive
OAM Cell Buffer for transmission, reception and
processing of OAM Cells
Supports ATM cell or PPP Packet Mapping
Supports M13 and C-Bit Parity Framing Formats
Supports DS3/E3 Clear-Channel Framing.
Includes PRBS Generator and Receiver
Supports Line, Cell, and PLCP Loop-backs
Interfaces to 8 Bit wide Intel, Motorola, PowerPC,
and Mips µPs
Low power 3.3V, 5V Input Tolerant, CMOS
Available in 208 STBGA Package
JTAG Interface
LINE INTERFACE UNIT
On chip Clock and Data Recovery circuit for high
input jitter tolerance
Meets E3/DS3 Jitter Tolerance Requirements
Detects and Clears LOS as per G.775.
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 and GR-499 Jitter Transfer
Requirements
On chip B3ZS/HDB3 encoder and decoder that can
be either enabled or disabled
On-chip clock synthesizer provides the appropriate
rate clock from a single 12.288 MHz Clock
On chip advanced crystal-less Jitter Attenuator
Jitter Attenuator can be selected in Receive or
Transmit paths
16 or 32 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
Typical power consumption 1.3W
DS3/E3 FRAMER
DS3 framer supports both M13 and C-bit parity.
DS3 framer meets ANSI T1.107 and T1.404
standards.
Detects OOF,LOF,AIS,RDI/FERF alarms.
Generation and Insertion of FEBE on received
parity errors supported.
Automatic insertion of RDI/FERF on alarm status.
E3 framer meets G.832,G.751 standards.
Framers can be bypassed.
ATM/PPP PROTOCOL PROCESSOR
TRANSMIT CELL PROCESSING
Extracts ATM cells


Similar Part No. - XRT79L71_07

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
XRT79L71IB EXAR-XRT79L71IB Datasheet
4Mb / 441P
   1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
XRT79L71IB EXAR-XRT79L71IB Datasheet
5Mb / 434P
   1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -
XRT79L71 EXAR-XRT79L71_1 Datasheet
5Mb / 434P
   1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -
More results

Similar Description - XRT79L71_07

ManufacturerPart #DatasheetDescription
logo
Exar Corporation
XRT79L71 EXAR-XRT79L71_1 Datasheet
5Mb / 434P
   1-CHANNEL DS3/E3 ATM UNI/PPP/CLEAR-CHANNEL FRAMER IC -
XRT79L71 EXAR-XRT79L71 Datasheet
4Mb / 441P
   1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
XRT79L72 EXAR-XRT79L72 Datasheet
800Kb / 72P
   2 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
XRT79L73 EXAR-XRT79L73 Datasheet
466Kb / 71P
   3 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
XRT79L74 EXAR-XRT79L74 Datasheet
876Kb / 70P
   4 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
XRT72L71 EXAR-XRT72L71 Datasheet
1Mb / 102P
   DS3 ATM UNI/CLEAR CHANNEL FRAMER
XRT74L73 EXAR-XRT74L73 Datasheet
2Mb / 488P
   3 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
XRT74L74 EXAR-XRT74L74 Datasheet
3Mb / 498P
   4 CHANNEL, ATM UNI/PPP DS3/E3 FRAMING CONTROLLER
XRT7250 EXAR-XRT7250 Datasheet
5Mb / 463P
   DS3/E3 FRAMER IC
XRT72L13 EXAR-XRT72L13 Datasheet
4Mb / 370P
   M13 MULTIPLEXER/CLEAR CHANNEL DS3 FRAMER IC
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com