GENERAL DESCRIPTION

The XRT5894 is an optimized four channel 3.3V line interface unit fabricated using low power CMOS technology. The device contains four independent E1 channels. Each channel performs the driver and receiver functions necessary to convert bipolar signals to logical levels and vice versa. The device requires transformers on both receiver and transmitter sides, and supports both balanced and unbalanced interfaces.

FEATURES

● Compliant with ITU G.703 Pulse Mask Template for 2.048Mbps (E1) Rates

● Four Independent CEPT Transceivers

● Supports Differential Transformer Coupled Receivers and Transmitters

● On Chip Pulse Shaping for Both 75W and 120W Line Drivers

● Compliant with ITU G.775 LOS Declaration/Clearing Recommendation

● Optional User Selectable LOS Declaration/Clearing Delay

● Logical Inputs Accept either 3.3V or 5.0V Levels

● Ultra-Low Power Dissipation

● +3.3V or 5.0V Supply Operations

● Individual Transmit Channel Over Temperature Protection

APPLICATIONS

● SDH Multiplexer

● Digital Cross Connects