XRT83VSH28

8-Channel E1 Short-Haul Line Interface Unit with JA & CDR
Product Flyer OBS (Obsolete)

Overview

Information 8-Channel E1 Short-Haul Line Interface Unit with JA & CDR
Package BGA-225
# of Channels 8
Clk Rec Yes
Data Rate(s) E1
Op Pwr Sup/Max Cur 3.3V ±5%, TBD
SH/LH S
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The XRT83VSH28 is a fully integrated 8-channel short-haul line interface unit (LIU) that operates from a 1.8V and a 3.3V power supply. Using internal termination, the LIU provides one bill of materials to operate in E1 75? or 120? mode with minimum external components. The LIU features are programmed through a standard parallel or serial microprocessor interface. EXAR's LIU has patented high impedance circuits that allow the transmitter outputs and receiver inputs to be high impedance when experiencing a power failure or when the LIU is powered off. Key design features within the LIU optimize 1:1 or 1+1 redundancy and non-intrusive monitoring applications to ensure reliability without using relays.

The on-chip clock synthesizer generates an E1 clock reference.

Additional features include RLOS, a 16-bit LCV counter for each channel, AIS, QRSS generation/detection, TAOS, DMO, and diagnostic loopback modes.

  • Fully integrated eight channel short-haul transceivers for E1 (2.048MHz) applications
  • Internal Impedance matching on both receive and transmit for 75Ω (E1) and 120Ω (E1) applications are per port selectable through software without changing components
  • Power down on a per channel basis with independent receive and transmit selection
  • User programable Arbitrary Pulse mode
  • On-Chip transmit short-circuit protection and limiting protects line drivers from damage on a per channel basis
  • Selectable Crystal-Less digital jitter attenuators (JA) with 32-Bit or 64-Bit FIFO for the receive or transmit path
  • Driver failure monitor output (DMO) alerts of possible system or external component problems
  • Transmit outputs and receive inputs may be "High" impedance for protection or redundancy applications on a per channel basis
  • Support for automatic protection switching
  • 1:1 and 1+1 protection without relays
  • Receive monitor mode handles 0 to 6dB resistive attenuation (flat loss) along with 0 to 6dB cable loss
  • Loss of signal (RLOS) according to ITU-T G.775/ETS300233 (E1)
  • Programmable data stream muting upon RLOS detection
  • On-Chip HDB3 encoder/decoder with an internal 16-bit LCV counter for each channel
  • On-Chip digital clock recovery circuit for high input jitter tolerance
  • QRSS/PRBS pattern generator and detection for testing and monitoring
  • Error and bipolar violation insertion and detection
  • Transmit all ones (TAOS) Generators and Detectors
  • Supports local analog, remote, digital, and dual loopback modes
  • Supports gapped clocks for mapper/multiplexer applications
  • 1.8V Inner Core
  • 3.3V I/O Supply Operation
  • 225 ball BGA package
  • -40°C to +85°C Temperature Range
  • Pb-Free, RoHS Compliant Versions Offered

  • ISDN Primary Rate Interface
  • CSU/DSU E1 Interface
  • E1 LAN/WAN Routers
  • Public switching Systems and PBX Interfaces
  • E1 Multiplexer and Channel Banks

Documentation & Design Tools

Type Title Version Date File Size
Application Notes TAN-200, MaxLinear APIs - OS Portability 1.0.0 August 2007 88.5 KB
Application Notes TAN-058, DS-1/E1 GR-1089 Surge Protection 1.0.1 September 2006 69.4 KB
Application Notes TAN-059, DS-1/E1 Line Recovered Clock PLL Timing 1.0.0 July 2006 23.4 KB
Application Notes TAN-057, DS1/E1 Layout Recommendations 1.0.0 June 2006 30 KB
Application Notes TAN-067, R3 Technology For T/E Carrier Redundancy Applications 1.0.0 April 2004 203.4 KB
Application Notes TAN-056, High Impedance Drivers During Power Failure Using XRT83SL3X/L3X LIU 1.0.0 November 2003 75.1 KB
Product Flyers 8-Channel E1 or T1/E1/J1 Short-Haul Line Interface Unit 1.0.0 July 2007 328.3 KB
Schematics & Design Files USB Schematic 0 July 2005 89 KB
Simulation Models
Package Type Vcc Temp Mode Version File
BGA 3.3V Industrial 5
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
XRT83VSH28IB-F N Y Y Y Y PBGA225 Y

Click on the links above to download the Certificate of Non-Use of Hazardous Substances.

Additional Quality Documentation may be available, please Contact Support.

Parts & Purchasing

Part Number Pkg Code Min Temp Max Temp Status Suggested Replacement PDN
XRT83VSH28IB PBGA225 -40 85 OBS XRT83VSH28IB-F
XRT83VSH28IB-F PBGA225 -40 85 OBS
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Part Status Legend
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.

Packaging

Pkg Code Details Quantities Dimensions PDF
PBGA225
  • JEDEC Reference: MS-034
  • MSL Pb-Free: L4 @ 245ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 24ºC/W
  • Bulk Pack Style: Tray
  • Quantity per Bulk Pack: 84
  • Quantity per Reel: n/a
  • Quantity per Tube: n/a
  • Quantity per Tray: 84
  • Reel Size (Dia. x Width x Pitch): n/a
  • Tape & Reel Unit Orientation: n/a
  • Dimensions: mm
  • Length: 17
  • Width: 17
  • Thickness: 2.1
  • Lead Pitch: 1.00

Notifications

Distribution Date Description File
09/30/2021 Product Discontinuation Notice
07/18/2014 Material Change. UTAC qualification to use mold compound KSG1250LKDS, in addition to current qualified mold compound KMC2520AL.
07/14/2014 Material Change. UTAC qualification to use mold compound KEG1250LKDS, in addition to current qualified mold compound KMC2520AL.
10/03/2013 Product Discontinuation Notification Discontinued.
03/02/2010 XRT83VSH28 is now being assembled with an existing qualified die with identical E1 performance. There is no change to Form, Fit, Function, Quality or Reliability as stated in the applicable datasheet. Business consolidation.

FAQs & Support

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The -F suffix indicates ROHS / Green compliance:
https://www.exar.com/quality-assurance-and-reliability/lead-free-program