Part XRT79L74
Description 4-CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
Manufacturer Exar
Size 607.89 KB
Exar

XRT79L74 Overview

Key Features

  • On chip Clock and Data Recovery circuit for high input jitter tolerance
  • Meets E3/DS3 Jitter Tolerance Requirements
  • Detects and Clears LOS as per G.775
  • Receiver Monitor mode handles up to 20 dB flat loss with 6 dB cable attenuation
  • Compliant with jitter transfer template outlined in ITU G.751, G.752, G.755 and GR-499-CORE,1995 standards
  • Meets ETSI TBR 24 and GR-499 Jitter Transfer Requirements
  • On chip B3ZS/HDB3 encoder and decoder that can be either enabled or disabled
  • On-chip clock synthesizer provides the appropriate rate clock from a single 12.288 MHz Clock
  • Integrated T3/E3 Line Interface Unit
  • Integrated Jitter Attenuator that can be selected either in Receive or Transmit path