ADE8157 Datasheet, PDF (1/2 Pages) Analog Devices – Narrow-Band Power Line

Data Sheet
Narrow-Band Power Line
Communications Slave Modem IC
ADE8157
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.
CONN/RUN 10
EVENT/IR_RX 33
STA/PHB 30
PHC 31
FSEL 3
ZX 20
FUNCTIONAL BLOCK DIAGRAM
ADE8157
NL
UART
DLL
PHY
21 IR_TX
23 URXD
22 UTXD
29 RS485_OE/PHA
26 RXEN
32 TX_LED/UACT
11 RX_LED/PACT
PLC_RX+ 37
PLC_RX– 38
ATUM1 40
ATUM0 1
3PHASE 2
12-BIT
ADC
DEMODULATOR
MODULATOR
28 PLC_TX+
27 PLC_TX–
OSC
LDO
4 ADCIN
6 DACOUT0
7 DACOUT1
24
25
19
15
XTAL0 XTAL1 nRST VDD
16
14
17
36
5
35
39
34
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
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