MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

1

REV 0.1

11/96

Product Preview

ADSL Line Driver

The MC03AX1456 ADSL Line Driver provides a single chip analog

front end to interface the ADSL Transceiver to the line transformer.

The MC03AX1456CO is designed to fulfill the central office

requirements. The MC03AX1456RT is optimized for use at the remote

terminal (i.e. consumer premises). The ADSL Line Driver provides three

differential ports: a transmit and a receive port to interface to the ADSL

Transceiver’s transmit and receive ports, respectively; and a bidirectional

line port.

The transmit port incorporates a high–pass filter and a programmable

gain stage with three settings. The receive port incorporates a

programmable HF boost and a programmable gain stage, each with three

settings, as well as a high pass–filter.

ADSL System Block Diagram

MC145650

Copper Gold

ADSL Transceiver

Central Office Unit

Host uP

0–1 Mbps

0–8 Mbps

MC03AX1456CO

Line Driver/Hybrid

MC145650

Copper Gold

ADSL Transceiver

Host uP

0–1 Mbps

0–8 Mbps

MC03AX1456RT

Line Driver/Hybrid

Remote Unit

Line Transformers

and POTS Splitters

This document contains information on a product under development. Motorola reserves the right to change or

discontinue this product without notice.

MC03AX1456CO

MC03AX1456RT

HSOP PACKAGE

CASE 979A–02