Narrow-Band Power Line

Communications Slave Modem IC

Data Sheet

ADE8157

Rev. SpB

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FEATURES

Narrow-band power line communications IC

Integrates physical layer, data link layer, and networking layer

Application layer

Supports DL/T 645-1997 or -2007 data protocol (specific to

China), as well as a pass-through option

Networking layer

Automatic baud rate negotiation

Dynamic routing

Data link layer

CRC error checking

Network key for data security

Physical layer

FSK modulation

Up to 800 bps on a single-phase

Single 3.3 V supply, low power (140 mW typical)

Package and temperature range

40-lead, 6 mm × 6 mm LFCSP

Fully specified for −40°C to +85°C operation

APPLICATIONS

Power line modems for AMR/AMI systems

GENERAL DESCRIPTION

The ADE81571 is a complete digital baseband processor IC that

includes a physical layer (PHY), data link layer (DLL), and net-

working layer (NL). The ADE8157 includes a high performance

receive path analog-to-digital converter (ADC) to reduce the

external component count. An on-chip digital modulator creates

the transmit signal for an external field effect transistor (FET)

driver. The ADE8157 can communicate directly with an energy

meter over the on-chip UART. The ADE8157 slave modem IC

is designed to work with the ADE8167 master modem IC for a

complete power line communication system.

In an advanced metering infrastructure (AMI) system, the

ADE8157 IC provides the essential functions of a slave modem,

which enables energy meters to communicate over the power

line. Each slave modem operates as a node in a mesh network.

The mesh network is under the control of a single master modem.

The ADE8167 IC provides the foundation for a master PLC

modem.

FUNCTIONAL BLOCK DIAGRAM

Figure 1.

For more information about the ADE8157 slave modem IC, contact your local Analog Devices, Inc., sales office.

1

U.S. patents pending.

ADE8157

CONN/RUN

RXEN

IR_TX

URXD

UTXD

RS485_OE/PHA

ATUM1

ATUM0

3PHASE

DEMODULATOR

MODULATOR

PHY

DLL

NL

33

10

EVENT/IR_RX

3

FSEL

20

ZX

37

PLC_RX+

38

40

1

2

24

PLC_RX–

12-BIT

ADC

OSC

LDO

XTAL0

25

XTAL1

19

nRST

15

16

VDD

VREG

14

DGND

17

DGND

5

AGND

36

AVDD

35

AGND

39

AGND

34

VREF

UART

21

23

22

29

26

TX_LED/UACT

32

RX_LED/PACT

PLC_TX+

PLC_TX–

11

28

27

DACOUT0

DACOUT1

6

ADCIN

4

7