TP3404 Datasheet (National Semiconductor)

TP3404, Quad Digital Adapter

The TP3404 is a combination 4-line transceiver for voice and data transmission on twisted pair subscriber loops typically in PBX line card applications It is a companion device to the TP3401 2 3 DASL single-channel transceivers In addition to 4 independent transceivers a time-slot assignment circuit

TP3404 Features

* 4 COMPLETE ISDN PBX 2-WIRE DATA TRANSCEIVERS INCLUDING Y Quad 2 B plus D channel interface for PBX ‘‘U’’ interface Y 144 kb s full-duplex on 1 twisted pair using Burst Mode Transmission Technique Y Loop range up to 6 kft ( 24AWG) Y Alternate Mark Inversion coding with transmit Pulse Shaping DAC Smoo