AFE030 Datasheet, PDF (1/58 Pages) Texas Instruments – Powerline Communications Analog Front-End

AFE030
www.ti.com
SBOS588A – DECEMBER 2011 – REVISED DECEMBER 2011
Powerline Communications Analog Front-End
Check for Samples: AFE030
FEATURES
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•234 Integrated Powerline Driver with Thermal and
Overcurrent Protection
• Conforms to EN50065-1
• Pin-Compatible to AFE031
• Large Output Swing: 13 V_PP at 1.0 A
(15-V Supply)
• Low Power Consumption: 15 mW
(Receive Mode)
• Programmable Tx and Rx Filters
• Supports EN50065 CENELEC Bands A, B, C, D
• Supports OFDM, FSK, and S-FSK
• Supports IEC 61334
• Receive Sensitivity: 20 μV_RMS, Typical
• Programmable Tx/Rx Gain Control
• Four-Wire Serial Peripheral Interface
• Two Integrated Zero Crossing Detectors
• Two-Wire Transceiver Buffer
• Package: QFN-48 PowerPAD™
• Extended Junction Temperature Range:
–40°C to +125°C
APPLICATIONS
• eMetering
• Lighting
• Solar
• Pilot Wire
DESCRIPTION
The AFE030 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 digital signal processor (DSP) or microcontroller.
It is ideal for driving low-impedance lines that require
up to 1.0 A into reactive loads. The integrated
receiver is able to detect signals down to 20 μV_RMS
and is capable of a wide range of gain options to
adapt to varying input signal conditions. This
monolithic integrated circuit provides high reliability in
demanding powerline communications applications.
The AFE030 transmit power amplifier operates from a
single supply in the range of 7 V to 26 V. At
maximum output current, a wide output swing
provides a 12-V_PP (I_OUT = 1.0 A) capability with a
nominal 15-V supply. The analog and digital signal
processing circuitry operates from a single 3.3-V
power supply.
The AFE030 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.
The AFE030 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.
DVDD
DGND
AGND1
AVDD1
AGND2
AVDD2
SCLK
DI
DO
CS
DAC
SD
Tx_FLAG
Rx_FLAG
INT
ZC1
Bias
ZC2
Digital Interface
(SPI)
Control
Register
Power
Amplifier
Digital-to-Analog
Converter
Device
TxPGA
Tx Filter
Two-Wire Rx/Tx
RxPGA_1
Rx Filter
RxPGA_2
E_Tx_CLK
E_Tx_IN
E_Tx_OUT
Rx_PGA1_IN
Rx_PGA1_OUT
Rx_F_IN
Rx_C1
Rx_C2
Rx_F_OUT
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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.
PowerPAD, C2000 are trademarks of Texas Instruments.
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SPI is a trademark of Motorola, Inc.
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All other trademarks are the property of their respective owners.
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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 © 2011, Texas Instruments Incorporated