XRT83VSH38

8-Channel T1/E1/J1 Short-Haul Line Interface Unit
OBS (Obsolete)
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Overview

Information 8-Channel T1/E1/J1 Short-Haul Line Interface Unit
Package BGA-225
Temperature Range (°C) Ind.
# of Channels 8
Clk Rec Yes
Data Rate(s) T1/E1/J1
Op Pwr Sup/Max Cur 3.3V ±5%, TBD
SH/LH S
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The XRT83VSH38 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 T1, E1, or J1 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 T1/E1/J1 clock rates from a selectable external clock frequency and outputs a clock reference of the line rate chosen.

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 T1/J1 (1.544MHz) and E1 (2.048MHz) applications
  • T1/E1/J1 short haul and clock rate are per port selectable through software without changing components
  • Internal Impedance matching on both receive and transmit for 75Ω (E1), 100Ω (T1), 110Ω (J1), 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
  • Five pre-programmed transmit pulse settings for T1 short haul applications per channel
  • 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 for both T1 and E1
  • Loss of signal (RLOS) according to ITU-T G.775/ETS300233 (E1) and ANSI T1.403 (T1/J1)
  • Programmable data stream muting upon RLOS detection
  • On-Chip HDB3/B8ZS 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 Digital Inner Core
  • 3.3V I/O Supply and Analog Inner Core
  • 225 ball BGA package
  • -40°C to +85°C Temperature Range
  • Pb-Free, RoHS Compliant Versions Offered

  • T1 Digital Cross-Connects (DSX-1)
  • ISDN Primary Rate Interface
  • CSU/DSU E1/T1/J1 Interface
  • T1/E1/J1 LAN/WAN Routers
  • Public switching Systems and PBX Interfaces
  • T1/E1/J1 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
Schematics & Design Files Schematic A August 2010 72.6 KB
Schematics & Design Files USB Schematic 0 July 2005 89 KB
Simulation Models
Package Type Vcc Temp Mode Version File
BGA 3.3V Industrial 3
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Quality & RoHS

Part Number RoHS | Exempt RoHS Halogen Free REACH TSCA MSL Rating / Peak Reflow Package
XRT83VSH38IB-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
XRT83VSH38IB PBGA225 -40 85 OBS XRT83VSH38IB-F
XRT83VSH38IB-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
11/08/2021 MaxLinear will be modifying the marking on the devices noted above from current ink process to new process of laser marking.
09/30/2021 Product Discontinuation Notice
10/03/2013 Product Discontinuation Notification Discontinued.

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