XRT83SL28

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

Overview

# of Channels 8
Data Rate(s) E1
Clk Rec Yes
SH/LH S
Op Pwr Sup/Max Cur 3.3V ±5%, TBD
Package TQFP-144
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Long established in the E1 arena, Exar proves again it has the right combination of design expertise and market knowledge to bring innovative products to market. The XRT83SL28 (Eight channel E1 LIU) join several other E1 AFEs and LIUs to give designers a multitude of architecture combinations to meet, or exceed their OEM market requirements. This new E1 device, coupled with an already extensive product line including three seven-channel AFEs (XRT5897, XRT5997 and XRT81L27), several four-channel devices (XRT5894, XRT5793, XRT5794, and XRT82L24), plus three single-channel parts (XRT59L91, XRT7288 and XRT82D20), give EXAR a distinct marketplace advantage. This new product, along with Exar's other E1 LIUs and AFEs give customers a clear and rich product family spanning DS1/E1 to SONET/SDH. Applications for these new devices include multiplexers (PDH and SDH), digital cross connects, DECT (Digital European Cordless Telephone) base stations, and CSU/DSU equipment.

Overview of Products

The XRT83SL28 contains eight independent E1 channels, including independent jitter attenuators and data and clock recovery circuits for each channel. Each channel also performs the driver and receiver functions necessary to convert bipolar signals to logical levels, as well as the reverse. Devices with eight E1 channels provide the most efficient method of implementing 16-channel and 32- channel line cards.

Exar's R3 TechnologyTM (Reconfigurable, Relayless Redundancy), first introduced in 2002 as a breakthrough capability delivering key benefits to customers designing interface cards has now been extended to the E1 environment. The devices are Reconfigurable with integrated termination supporting both 75 and 100 W line impedances enabling customers to build one board with a single bill-of-materials, and gives them the agility to quickly respond and reconfigure devices for compressed design cycles without the unnecessary stock piling of inventory for all configurations. In addition, the XRT83SL28 employs Relayless Redundancy eliminating the need for external relays for 1:1 and 1+1 applications by establishing a back-up channel that can be brought on-line in the event of failure.

  • Eight independent E1 (CEPT) line interface units (transmitter and receiver) in one chip
  • Generates transmit output pulses that are compliant with the ITU-T G.703 pulse template for 2.048Mbps (E1) rates
  • On-chip pulse shaping
  • Compliant with ITU-T G. 838 jitter tolerance requirements
  • Declares and clears Loss of Signal (LOS) meeting ITU
  • G.775 standards
  • Ultra low power dissipation
  • Low power 3.3V operation
  • Functions over industrial temperature range
  • Pb-Free, RoHS Compliant Versions Offered

  • PDH multiplexers
  • SDH multiplexers
  • Digital cross-connect systems
  • DECT (Digital European Cordless Telephone) base stations
  • CSU/DSU equipment

Documentation & Design Tools

Type Title Version Date File Size
Data Sheets XRT83SL28 8-Channel E1 Short-Haul Line Interface Unit 1.0.0 April 2005 916.2 KB
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
Schematics & Design Files Schematic 1.0.0 January 2004 62.5 KB
Simulation Models
Package Type Vcc Temp Mode Version File
TQFP 3.3V Industrial 3
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
XRT83SL28IV-F N Y Y Y Y L3 / 260ᵒC LQFP144

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
XRT83SL28IV LQFP144 -40 85 OBS
XRT83SL28IV-F LQFP144 -40 85 OBS XRT83VSH28IB-F
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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
LQFP144
  • JEDEC Reference: MO-026
  • MSL Pb-Free: L3 @ 260ºC
  • MSL SnPb Eutectic: n/a
  • ThetaJA: 24.0ºC/W
  • Bulk Pack Style: Tray
  • Quantity per Bulk Pack: 60
  • Quantity per Reel: 750
  • Quantity per Tube: n/a
  • Quantity per Tray: 60
  • Reel Size (Dia. x Width x Pitch): 330 x 44 x 32
  • Tape & Reel Unit Orientation: Quadrant 2
  • Dimensions: mm
  • Length: 20
  • Width: 20
  • Thickness: 1.60
  • Lead Pitch: 0.50

Notifications

Distribution Date Description File
10/12/2019 Product Discontinuation Notice
12/05/2013 Addition of an alternate qualified assembly site, ASE Chung-Li (Taiwan) for assembly using copper or gold wire bonding. Material change and alternate assembly site.
12/08/2009 Assembly supplier is changed from Unisem, Indonesia to ASAT, China. ASAT is an alternate qualified assembly supplier for this package family. There is no change to Form, Fit, or Function as stated in the applicable datasheet. Using an attached heat spreader to the die paddle will improve product manufacturability and it is readily available in ASAT.

FAQs & Support

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