XRT73R12 Overview
The XRT73R12 is a twelve channel fully integrated Line Interface Unit (LIU) featuring EXAR’s R3 Technology (Reconfigurable, Relayless Redundancy) for E3/DS3/STS-1 applications. The LIU incorporates 12 independent Receivers and Transmitters in a single 420 Lead TBGA package. Each channel of the XRT73R12 can be independently configured to operate in E3 (34.368 MHz), DS3 (44.736 MHz) or STS-1 (51.84 MHz).
XRT73R12 Key Features
- 40°C to 85°C Industrial Temperature Range
- Accepts either Single-Rail or Dual-Rail data from
- On chip Clock and Data Recovery circuit for high
- Meets E3/DS3/STS-1 Jitter Tolerance Requirement
- Detects and Clears LOS as per G.775
- Receiver Monitor mode handles up to 20 dB flat
- Integrated Pulse Shaping Circuit
- Built-in B3ZS/HDB3 Encoder (which can be
- Accepts Transmit Clock with duty cycle of 30%70%
- On chip B3ZS/HDB3 encoder and decoder that can