XRT83SL28IV datasheet(3/47 Pages) EXAR

3 / 47 page

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

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