TP3401 - National Semiconductor

TP3401 DASL Digital Adapter for Subscriber Loops

The TP3401 TP3402 and TP3403 are complete monolithic transceivers for data transmission on twisted pair subscriber loops They are built on National’s double poly microCMOS process and require only a single a 5 Volt supply Alternate Mark Inversion (AMI) line coding in which binary ‘1’s are alternately transmitted as a positive pulse then a negative pulse is u.

Features

Complete ISDN PBX 2-Wire Data Transceiver including Y 2 B plus D channel interface for PBX U Interface Y 144 kb s full-duplex on 1 twisted pair using Burst Mode Y Loop range up to 6 kft ( 24AWG) Y Alternate Mark Inversion coding with transmit filter and scrambler for low emi radiation Y Adaptive line equalizer Y On-chip timing recovery no external components Y Standard TDM interface for B channels Y Separate interface for D channel Y 2 048 MHz master clock Y Driver for line transformer Y 4 loop-back test modes Y Single a 5V supply Y MICROWIRE TM compatible serial control interface Y Applicatio.