78P2352

Obsolete

Dual-Channel OC-3/STM1-1e/E4 LIU

Highest Integration and Lowest Power LIU for STM-1e/E4

Data Sheet (Rev. 2) Product Selection Table

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Overview

ITU-T G.703-Compliant Cable Driver for 139.264Mbps or 155.52Mbps CMI-Coded Coax Transmission
Integrated Adaptive CMI Equalizer and CDR in Receive Path Handles Over 12.7dB of Cable Loss
Serial LVPECL System Interface with Integrated CRU in Transmit Path for Flexible NRZ-to-CMI Conversion
4-Bit Parallel CMOS System Interface with Master and Slave Tx Clock Modes
Selectable LVPECL-Compatible NRZ Media Interface for 155.52Mbps Optical Transmission
Configurable Through Hardware Control Pins or 4-Wire Serial Port Interface
Compliant with ANSI T1.105.03-1994; ITU-T G.751, G.813, G.823, G.825, G.958; and Telcordia GR-253-CORE for Jitter Performance
Receiver Loss-of-Signal (LOS) Detection Compatible with ITU-T G.783
Operates from a Single 3.3V Supply
Standard and Thermally Enhanced 128-Pin JEDEC LQFP Package Options

The 78P2352 is Teridian's second generation line interface unit (LIU) for 155Mbps SDH/SONET (OC-3, STS-3, or STM-1) and 140Mbps PDH (E4) telecom interfaces. The device is a dual-channel, single-chip solution that includes an integrated CDR in the transmit path for flexible NRZ-to-CMI conversion. The device can interface to 75Ω coaxial cable using CMI coding or directly to a fiber optics transceiver module using NRZ coding. The 78P2352 is compliant with all respective ANSI, ITU-T, and Telcordia standards for jitter tolerance, generation, and transfer.

Applications