PL 3120® and PL 3150® Power
Line Smart Transceivers
®
Feature
• Combines an ANSI-709.2 compliant Power Line Transceiver with an ANSI 709.1
compliant Neuron® 3120 or Neuron 3150 processor core
• Designed to comply with FCC, Industry Canada, Japan MPT, and European
CENELEC EN 50065-1 power line communications regulations
• Supports CENELEC A-band and C-band operation
• Dual carrier frequency mode and digital signal processing
• 4K Bytes of embedded EEPROM for application code and configuration data on
the PL 3120 Power Line Smart Transceiver and 0.5K Bytes of embedded EEPROM for configuration data on the PL 3150 Power Line Smart Transceiver
• Interface for external memory for applications with larger memory requirements
(PL 3150 Power Line Smart Transceiver only)
• 2K Bytes of embedded RAM for buffering network data and network variables
• Full duplex hardware UART and SPI serial interfaces
• 12 I/O pins with 38 programmable standard I/O modes to minimize external
interface circuitry
• -40 to +85°C operating temperature range
Overview
The PL 3120 and PL 3150 Power Line Smart Transceivers integrate a Neuron processor core
with a power line transceiver, making them ideal for appliance, audio/video, lighting, heating/cooling, security, metering, and irrigation applications. Essentially a system-on-a-chip, the
Power Line Smart Transceivers feature a highly reliable narrow-band power line transceiver,
an 8-bit Neuron processor core for running applications and managing network communications, a choice of on-board or external memory, and an extremely small form factor – all at a
price that is compelling for even the most cost-sensitive consumer product applications.
A Global Product
Compliant with FCC, Industry Canada, Japan MPT, and European CENELEC EN50065-1
regulations, the PL 3120 and PL 3150 Power Line Smart Transceivers can be used in applications worldwide.
The Power Line Smart Transceivers implement the CENELEC access protocol, which can be
enabled or disabled by the user. This eliminates the need for users to develop the complex
timing and access algorithms mandated under CENELEC EN50065-1. Additionally, the Power
www.echelon.com
®
Line Smart Transceivers can operate in either the CENELEC utility (A-band) or general signaling (C-band) bands, eliminating
the need to stock multiple parts for
different applications.
Unmatched Performance
Intermittent noise sources, impedance
changes, and attenuation make the power
line a hostile signaling environment. The PL
3120 and PL 3150 Power Line Smart Transceivers incorporate a variety of technical
innovations to insure reliable operation:
• Unique dual carrier frequency
feature automatically selects an alternate secondary communication
frequency should the primary
frequency be blocked by noise;
• Highly efficient, patented, low-overhead forward error correction
(FEC) algorithm to overcome
errors induced by noise;
• Sophisticated digital signal processing, noise cancellation, and distortion correction algorithms. These
features correct for a wide variety
of signaling impediments, including
impulsive noise, continuous tone
noise, and phase distortion;
• High output, low distortion external
amplifier design that can deliver
1Ap-p into low impedance loads,
eliminating the need for expensive
phase couplers in typical residential
applications.
The combination of these special features
enable the Power Line Smart Transceivers
to operate reliably in the presence of consumer electronics, power line intercoms,
motor noise, electronic ballasts, dimmers,
and other typical sources of interference.
The Power Line Smart Transceivers can
communicate over virtually any AC or
DC power mains, as well as unpowered
twisted pair, by way of a low-cost,
external coupling circuit.
The PL 3120 Power Line Smart Transceiver
is targeted at very low cost designs that
require up to 4K Bytes of application code,
and an ultra-compact 38 TSSOP package.
The chip includes 4K Bytes of EEPROM and
2K Bytes of RAM. The Neuron system
firmware and software application libraries
are contained in on-chip ROM.
The PL 3150 Power Line Smart Transceiver
is intended for applications that need to
address up to 58K Bytes of external memory (16K Bytes is dedicated to the Neuron
system firmware) using a 64 LQFP package. The chip includes 0.5K Bytes of
EEPROM and 2K Bytes of RAM.
The PL 3120 and PL 3150 Power Line Smart
Transceivers operate at either 6.5536MHz
or 10.0MHz. The 6.5536MHz clock frequency enables the Power Line Smart
Transceiver to communicate in the CENELEC A-band, which is used for metering
and utility applications. The 10MHz clock
frequency supports the CENELEC C-band,
which is used for general purpose signaling
and all non-utility related applications.
Application programs stored in the embedded EEPROM (PL 3120 Power Line Smart
Transceiver) or in the external non-volatile
memory (PL 3150 Power Line Smart Transceiver) may be updated over the power
line network. This valuable feature enables
products to be updated without physically
accessing them, i.e., from a local PC with a
power line interface or from a remote
service center through an i.LON® Internet
Server. The embedded EEPROM may be
written up to 10,000 times with no data
loss. Data stored in the EEPROM will be
retained for at least ten years.
Inexpensive Power Supply
The PL 3120 and PL3150 Power Line Smart
Transceivers use +8.5 to +18VDC and
+5VDC power supplies and support very
low receive mode current consumption.
The wide power supply range and very
low receive power requirements allow
the use of inexpensive power supplies.
Additionally, the Power Line Smart Transceivers incorporate a power management
feature that constantly monitors the status
of the device’s power supply. If during
transmission the power supply voltage
falls to a level that is insufficient to ensure
reliable signaling, the transceiver stops
transmitting until the power supply voltage
rises to an acceptable level. This unique
feature allows the use of a power supply
with one-third the current capacity otherwise required. The net result is a reduction
in the size, cost, and thermal dissipation
of the power supply. Power management is
especially useful for high volume, low-cost
consumer products such as electrical
switches, motion detectors, outlets, light
sensors, and dim
Flexible I/O, Simple
Configuration
The PL 3120 and PL 3150 Power Line Smart
Transceivers provide 12 I/O pins which can
be configured to operate in one or more
of 38 predefined standard input/output
modes. Combining a wide range of I/O
models with two on-board timer/counters
enables the PL 3120 and PL 3150 Power
Line Smart Transceivers to interface with
application circuits using minimal external
logic or software development. The Power
Line Smart Transceivers also feature a full
duplex hardware UART supporting baud
rates of up to 115kbps, and an SPI interface
that operates up to 625kbps.
External Components
Only a small number of inexpensive external components are required to create a
complete Power Line Smart Transceiverbased device (see the PL 3120 / PL 3150
Power Line Smart Transceiver Block Diagram). These components include:
• Discrete interface circuitry comprised of roughly fifty components,
primarily resistors and capacitors.
This circuitry provides “front-end”
filtering for the on-chip A/D, and
implements the power amplifier
that drives the on-chip D/A transmit
signal onto the power line. Echelon
offers a comprehensive Power Line
Development Support Kit* (DSK)
with which customers can implement this interface circuitry. Contact
your salesperson for details about
purchasing a PL DSK.
• Coupling circuit consisting of
approximately ten components,
mainly capacitors and inductors,
which acts as a simple high-pass
filter located between the Power
Line Smart Transceiver and the
power mains. This circuitry provides
surge and line transient protection
in addition to blocking the low frequency, 50Hz/60Hz AC mains
signal. Detailed schematics are
provided in the PL 3120 / PL 3150
Power Line Smart Transceiver
Data Book.
• The new RoHS compliant Revision
B Power Line Smart Transceivers
eliminate the need for an external
inverter, thereby reducing the cost
of external components. Circuits
without an external inverter can
only be used with Revision B parts
(15311R-1000 PL 3120 Power Line
Smart Transceiver and 15321R-960
PL 3150 Power Line Smart
Transceiver).
*Echelon Corporation has developed and
patented certain methods of implementing
circuitry external to the PL 3120 and PL 3150
Power Line Smart Transceiver chips. These
patents are licensed pursuant to the Echelon
Power Line Smart Transceiver Development
Support Kit License Agreement.
www.echelon.com
®
PL 3120 / PL 3150 Power Line Smart Transceiver Block Diagram
General Specifications
Function
Emissions compliance
Bit rate
Communication technique
Carrier frequencies
RoHS Compliance
Description
Designed to be compliant with FCC, Industry Canada, Japan MPT, and CENELEC EN50065-1
specification for low-voltage signaling
5.4kbps raw bit rate in CENELEC C-band and 3.6kbps in CENELEC A-band
Dual Frequency BPSK with DSP-enhanced receiver
132kHz (primary) and 115kHz (secondary) in CENELEC C-band and
86kHz (primary) and 75kHz (secondary) in CENELEC A-band
Models 15311R-1000 and 15321R-960 are designed to be compliant with European Directive
2002/95/EC on Restriction of Hazardous Substances (RoHS) in electrical and electronic
equipment.
PL 3120 Power Line Smart Transceiver Pinout Diagram
38 Pin TSSOP
NOTE:
1
The schematic, bill of materials, and layout plots for the Discrete Interface Circuitry
are provided in the PL DSK Power Line Smart Transceiver Development Support Kit.
www.echelon.com
®
PL 3150 Power Line Smart Transceiver Pinout Diagram
64 Pin LQFP
PL 3120 and PL 3150 Power Line Smart Transceiver Pin Descriptions
Pin Name
Type
Pin Functions
XIN
XOUT
RESET
Input
Output
Digital I/O (Built-in Pull-up)
Oscillator connection or external clock input.
Oscillator connection.
Reset pin (active LOW).
Note: The maximum external capacitance is 1000pF.
Service pin (active LOW).
SERVICE
Digital I/O
(Built-in Configurable Pull-up)
CLKSEL
Digital Input
Tie to VDD5.
IO0-IO3
Digital I/O
Large current-sink capacity (20mA). General purpose I/O.
The output of timer/counter 1 may be routed to IO0.
The output of timer/counter 2 may be routed to IO1.
IO4-IO7, IO11 Digital I/O
General purpose I/O. The input of timer/counter 1 may be
(Built-in Configurable Pull-up) one of IO4-IO7. The input of timer/counter 2 is IO4.
IO8
Digital I/O
General purpose I/O. UART RX. SPI slave clock input.
SPI master clock output.
IO9
Digital I/O
General purpose I/O. SPI slave data output. SPI master
data input.
IO10
Digital I/O
General purpose I/O. SPI slave data input. SPI master
data output.
D0-D7
I/O
Bi-directional data bus
R/W
Output
Read/write control output for external memory
PL 3120-E4T10
38 TSSOP Pin No.
29
30
35
PL 3150-L10
64 LQFP Pin No.
34
35
49
36
50
34
2, 3, 4, 5
48
62, 63, 64, 1
6, 7, 8, 9, 33
2, 3, 4, 13, 47
10
14
11
15
12
16
N/A
N/A
12, 11, 10, 9, 8, 7, 6, 5
37
www.echelon.com
®
Pin Name
Type
Pin Functions
PL 3120-E4T10
38 TSSOP Pin No.
N/A
N/A
E
A0-A15
Output
Output
Enable clock control output for external memory
Memory address output port
VDD5
Power
VDD5A
Power
GND
Power
ICTMode
Digital Input
PKD
BIU
RXIN
INTIN,INTOUT
RXC
OOGAS
Digital Output
Digital Output
Analog Input
Analog I/O
Analog Input
Analog Input
VCORE
Power
TXON
Digital Output
TXDAC
TXSENSE
TXBIAS
Analog Output
Analog Input
Analog Output
Power input (5V nom). All VDD5 pins must be
connected together externally.
Power input (5V nom). Supplies on-chip analog
circuitry.
Power input (0V, GND). All GND pins must be
connected together externally.
In-circuit test mode control. Driving ICTMode high and
RESET low will place all outputs in high impedance mode
for in-circuit test. Tie to GND for normal operation.
Packet Detect LED driver.
Band in Use LED driver.
Receiver input.
Integrator input and output.
Receive signal.
Comparator to detect when energy storage power supply
lacks sufficient energy to transmit a packet. Tie to VCORE
if not used.
Output of internal 1.8V regulator. Requires 0.1µF
external capacitor.
High when transmitting. Used to drive LED to show
packet transmission.
Transmit waveform DAC output.
Transmit amplifier sense feedback.
Transmit amplifier bias generator.
13, 27, 37
PL 3150-L10
64 LQFP Pin No.
17
38, 39, 40, 41, 42, 43,
44, 45, 57, 58, 60, 59,
53, 56, 55, 54
18, 32, 51
19
24
1, 23, 28, 38
28, 33, 52, 61
32
46
21
22
15
17, 18
16
14
26
27
20
22, 23
21
19
20
25
31
36
26
25
24
31
30
29
Recommended Operating Conditions
Symbol
VDD5
VDD5A
TA
FA-band
FC-band
Parameter
VDD5 Supply Voltage
VDD5A Supply Voltage
Ambient Temperature
XIN Frequency for A-band Operation
(6.5536MHz ±200ppm)
XIN Frequency for C-band Operation
(10.0000MHz ±200ppm)
Min.
4.75
4.60
-40
6.5523
Typ.
5.00
5.00
25
6.5536
Max.
5.25
5.25
85
6.5549
Unit
V
V
ºC
MHz
9.9980
10.0000
10.0020
MHz
Electrical Characteristics (over recommended operating conditions)
Symbol
VIL
VIH
VOL
VOH
Vhys
Iin
Parameter
Digital Input Low-Level Voltage
Digital Input High-Level Voltage
Digital Output Low-Level Voltage
Iout