Narrow-Band Power Line
Communications Slave Modem IC
Data Sheet
ADE8157
FEATURES
GENERAL DESCRIPTION
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
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.
CRC error checking
Network key for data security
Physical layer
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.
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
FUNCTIONAL BLOCK DIAGRAM
ADE8157
IR_TX
URXD
21
23
10
33
CONN/RUN
NL
EVENT/IR_RX
UART
22 UTXD
STA/PHB 30
DLL
PHY
29 RS485_OE/PHA
31
3
PHC
RXEN
26
FSEL
TX_LED/UACT
RX_LED/PACT
32
11
20
ZX
37
38
PLC_RX+
PLC_RX–
PLC_TX+
28
12-BIT
ADC
DEMODULATOR
MODULATOR
27 PLC_TX–
4
6
7
ADCIN
ATUM1
ATUM0
40
1
LDO
OSC
DACOUT0
DACOUT1
3PHASE
2
24
25
19
15
16
14
17
36
5
35
39
34
XTAL0 XTAL1 nRST VDD
VREG DGND DGND AVDD AGND AGND AGND VREF
Figure 1.
For more information about the ADE8157 slave modem IC, contact your local Analog Devices, Inc., sales office.
1 U.S. patents pending.
Rev. SpB
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarks and registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700 www.analog.com
Fax: 781.461.3113 ©2011–2012 Analog Devices, Inc. All rights reserved.
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