AFE031
www.ti.com
SBOS531D –AUGUST 2010–REVISED MAY 2012
Powerline Communications
Analog Front-End
Check for Samples: AFE031
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FEATURES
DESCRIPTION
The AFE031 is a low-cost, integrated, powerline
communications (PLC) analog front-end (AFE) device
that is capable of capacitive- or transformer-coupled
connections to the powerline while under the control
of a DSP or microcontroller. It is ideal for driving low-
impedance lines that require up to 1.5 A into reactive
loads. The integrated receiver is able to detect
signals down to 20 μVRMS and is capable of a wide
range of gain options to adapt to varying input signal
conditions. This monolithic integrated circuit provides
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Integrated Powerline Driver with Thermal and
Overcurrent Protection
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Conforms to EN50065-1
PRIME Certified
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Large Output Swing: 12 VPP at 1.5 A
(15-V Supply)
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Low Power Consumption:
15 mW (Receive Mode)
high
reliability
in
demanding
powerline
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Programmable Tx and Rx Filters
communications applications.
Supports EN50065 CENELEC Bands A, B, C, D
Supports FSK, S-FSK, and OFDM
Supports PRIME, G3, IEC 61334
The AFE031 transmit power amplifier operates from a
single supply in the range of 7 V to 24 V. At
maximum output current,
provides a 12-VPP (IOUT = 1.5 A) capability with a
nominal 15-V supply. The analog and digital signal
processing circuitry operates from a single 3.3-V
power supply.
a wide output swing
Receive Sensitivity: 20 μVRMS, Typical
Programmable Tx and Rx Gain Control
Four-Wire Serial Peripheral Interface
Two Integrated Zero Crossing Detectors
Two-Wire Transceiver Buffer
The AFE031 is internally protected against
overtemperature and short-circuit conditions. It also
provides an adjustable current limit. An interrupt
output is provided that indicates both current limit and
thermal limit. There is also a shutdown pin that can
be used to quickly put the device into its lowest
power state. Through the four-wire serial peripheral
interface, or SPI™, each functional block can be
enabled or disabled to optimize power dissipation.
48-Pin QFN PowerPAD™ Package
Extended Junction Temperature Range:
–40°C to +125°C
APPLICATIONS
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eMetering
Lighting
Solar
The AFE031 is housed in a thermally-enhanced,
surface-mount PowerPAD package (QFN-48).
Operation is specified over the extended industrial
junction temperature range of –40°C to +125°C.
Pilot Wire
DVDD
DGND
AGND1
AVDD1
AGND2
AVDD2
E_Tx_CLK
E_Tx_IN
ZC1
ZC2
Bias
E_Tx_OUT
Two-Wire Rx/Tx
RxPGA_1
SCLK
DI
Digital Interface
(SPI)
Rx_PGA1_IN
Power
Amplifier
DO
CS
Rx_PGA1_OUT
Rx_F_IN
Rx_C1
DAC
SD
Control
Register
Tx_FLAG
Rx_FLAG
Rx_C2
INT
Rx Filter
Rx_F_OUT
RxPGA_2
Digital-to-Analog
Converter
TxPGA
Tx Filter
AFE031
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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PowerPAD, C2000 are trademarks of Texas Instruments.
SPI is a trademark of Motorola, Inc.
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010–2012, Texas Instruments Incorporated
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