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XRT83SL28
REV. 1.0.0
8-CHANNEL E1 SHORT-HAUL LINE INTERFACE UNIT
FEATURES
• Fully integrated 8-Channel short haul transceivers for E1 (2.048MHz) applications.
• Internal Impedance matching on both receive and transmit for 75Ω (E1) or 120Ω (E1) applications.
• Tri-State on a per channel basis for the transmit selection.
• On-Chip transmit short-circuit protection and limiting protects line drivers from damage on a per channel
basis.
• Independent Crystal-Less digital jitter attenuators (JA) with 32-Bit or 64-Bit FIFO for the receive or transmit
paths
• 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.
• RLOS/AIS according to ITU-T G.775 or ETSI-300-233.
• On-Chip HDB3 encoder/decoder for each channel.
• On-Chip digital clock recovery circuit for high input jitter tolerance.
• Line code error and bipolar violation detection.
• Transmit all ones (TAOS) for the Transmit and Receive Outputs.
• Supports local analog, remote, and digital loopback modes.
• Supports gapped clocks for mapper/multiplexer applications.
• Low Power dissipation
• Single 3.3V supply operation (3V to 5V I/O tolerant).
• 144-Pin TQFP package
• -40°C to +85°C Temperature Range
PRODUCT ORDERING INFORMATION
PRODUCT NUMBER
PACKAGE TYPE
OPERATING TEMPERATURE RANGE
XRT83SL28IV
144 Lead TQFP
-40°C to +85°C
3
EXAR [ EXAR CORPORATION ]
