Serial 155M NRZ-to-CMI Converter

Smallest Power and Package Footprint for NRZ-to-CMI Conversion

Overview

Design Resources

Ordering Info

Status

Active: In Production.

Description

The 78P2351R is Teridian’s second generation line interface unit (LIU) for 155Mbps electrical SDH interfaces (STM-1e). The device is a single-chip solution that includes an integrated clock and data recovery in both the transmit and receive paths for easy, cost-efficient NRZ-to-CMI conversion.

The device interfaces to 75Ω coaxial cable through wideband transformers and can handle over 12.7dB of cable loss. By eliminating the needs for synchronous clocks, the small 78P2351R (7mm x 7mm MLF package) is ideal for new STM-1e (ES1) small form-factor pluggable (SFP) transceiver modules.

Data Sheet

Download	Rev 2	(PDF, 580kB)
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Key Features

ITU-T G.703-Compliant, Adjustable Cable Driver for 155.52Mbps CMI-Coded Coax Transmission
Integrated Adaptive CMI Equalizer and CDR in Receive Path Handles Over 12.7dB of Cable Loss
LVPECL-Compatible System Interface with Integrated CDR in Transmit Path for Flexible NRZ-to-CMI Conversion
Configurable Through Hardware Control Pins or 4-Wire Serial Port Interface
Compliant with ANSI T1.105.03-1994; ITU-T G.813, G.825, G.958; and Telcordia GR-253-CORE for Jitter Performance
Receive Loss-of-Signal (Rx LOS) Detection
Receive Monitor Mode Handles Up to 20dB of Flat Loss (at max 6dB Cable Loss)
Optional Fixed Backplane Equalizer Compensates for Up to 1.5m of Trace
Operates from a Single 3.3V Supply
Available in a Small 7mm x 7mm, 56-Pin QFN Package
Industrial Temperature Range: -40°C to +85°C

Applications/Uses

Add/Drop Multiplexers (ADMs)
Digital Microwave Radios
Multiservice Switches
PDH/SDH Test Equipment
SDH/ATM Line Cards
STM-1e SFP Modules

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Information Index

Overview		Design Resources		Ordering Info		Related Products
Description Key Features Applications/Uses Key Specifications Diagram Notes and Comments		Data Sheet Technical Documents Evaluation Kits Reliability Reports Software/Models		Price and Availability Samples Buy Online Package Information Lead-Free Information		Similar Products by Function Similar Products by Application Evaluation Kits Products with Similar Part Numbers Products Used With This

Document Ref.: 19-5433 Rev 2; 2010-07-28
This page last modified: 2010-10-25