1. FUNCTIONAL DESCRIPTION

The AS5501/02 is a SYNCHRONOUS HALF DUPLEX FSK MODEM with programmable

FSK-frequencies, Baud-Rate and ReceiverFilter-Characteristics working with a single +5V

SUPPLY. The circuit is designed to be used with an external buffer-stage and transformer-

coupling to transfer data over a POWER-LINE.

A mask-programmed default setting defines the state after power-up (reset) see chapter 1.1.

With the serial interface the default setting can be overwritten.

A0/CS

SD-IN

SCLK

RES-TH

MCLK

SD-OUT

RESN

VREF

CKSYS

SERIF

RESET

TIMING

AFCF

AGND

TxFb

TxOut1

M1M

P1M

contr. & clock signals

TXD

TxEn

TRANSMITTER

RXI,AGND,CKTX,SC-CLK...

ZC

RECEIVER

CD

RXD

CLR/T

RXO,IFI,IFO

TST-IN

TEST-MUX

TST-OUT

AVSS

AVDD

DVSS

DVDD

TxOut2

AS5501 / AS5502 Multimode Powerline Modem

Data Sheet

Rev A, May 2000

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