GENERAL DESCRIPTION

The XR-T7296 is a fully integrated PCM Line Driver IC intended for DS3 (44.736Mbps) or E3 (34.368Mbps) applications. It can also be used for transmitting SONET STS-1 (51.84Mbps) signals over coaxial cable. The IC is designed to complement either XR-T7295 DS3/SONET STS-1 or XR-T7295E E3 Integrated Line Receivers. The XR-T7296 converts input clock and dual-rail unipolar data into AMI pulses according to AT&T Technical Advisory No. 34 or CCITT G.703 recommendations.

FEATURES

? Fully Integrated Transmit Interface for DS3/STS-1 or E3

? Integrated Pulse Shaping Circuit

? Compliance with Compatibility Bulletin 119

? Compliance with CCITT Recommendations G.703 & G.824

? Compliance with Bellcore TR-NWT-000499

? Compliance with ANSI T1.404

? Built-in B3ZS/HDB3 Encoder and Decoder

? Remote and Local Loopback Functions

? Single 5V Power Supply

APPLICATIONS

? Interface for SONET, DS-3 and E3 Network Equipment

? Digital Cross-Connect Systems

? CSU/DSU Equipment

? PCM Test Equipment

? Fiber Optic Terminals