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XRT82D20 Datasheet Single Channel E1 Line Interface Unit

Manufacturer: Exar (now MaxLinear)

Overview: .. áç APRIL 2001 XRT82D20 SINGLE CHANNEL E1 LINE INTERFACE UNIT REV. 1.0.

General Description

The XRT82D20 is a fully integrated, single channel, Line Interface Unit (Transceiver) for 75 Ω or 120 Ω E1 (2.048 Mbps) applications.

The LIU consists of a receiver with adaptive data slicer for accurate data and clock recovery and a transmitter which accepts either single or dual-rail digital inputs for signal transmission to the line using a low- impedance differential line driver.

The LIU also includes a crystalless jitter attenuator for clock and data smoothing which, depending on system requirements, can be selected in either the transmit or receive path.

Key Features

  • Complete E1 (CEPT) line interface unit.
  • Generates transmit output pulses that are compliant with the ITU-T G.703 Pulse Template for 2.048Mbps (E1) rates.
  • On-Chip Pulse Shaping for both 75 Ω and 120 Ω Line Drivers FIGURE 1. BLOCK.

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XRT83L38 OCTAL T1/E1/J1 LH/SH TRANSCEIVER

XRT82D20 Distributor