AFE032 Datasheet, PDF (1/77 Pages) Texas Instruments – Power-Line Communications Analog Front-End

AFE032
www.ti.com
SBOS669A – AUGUST 2013 – REVISED DECEMBER 2013
Power-Line Communications Analog Front-End
Check for Samples: AFE032
FEATURES
1
•2345 Supports:
– CENELEC Bands A, B, C, D
– ARIB STD-T84, FCC
– FSK, SFSK, and NB-OFDM
• Conforms To:
– EN50065-1, -2, -3, -7
– FCC, Part 15
– ARIB STD-T84
• Standards:
– G3, PRIME, P1901.2, ITU-G.hnem
• Programmable Tx Low-Pass Filters and
Rx Band-Pass Filters
• Integrated Power-Line Driver with Thermal and
Overcurrent Protection
• Low-Power Consumption:
– 50 mW (Receiver Mode)
• Receive Sensitivity: 10 μV_RMS (Typ)
• Four-Wire SPI™ Interface
• Three Integrated Zero-Crossing Detectors
• Package: QFN-48 PowerPAD™
• Extended Temperature Range:
–40°C to +125°C
The integrated receiver is able to detect signals down
to 10 μV_RMS (G3-FCC mode) and is capable of a wide
range of gain options to adapt to varying input-signal
conditions. The monolithic integrated circuit provides
high reliability in demanding power-line
communication applications.
The AFE032 transmit power amplifier operates from a
single supply in the range of 7 V to 24 V. At typical
load current (I_OUT = 1.5 A_PEAK), a wide output swing
provides a 12-V_PP capability with a nominal 15-V
supply.
The device is internally protected against
overtemperature and short-circuit conditions. The
device also provides a selectable current limit. An
interrupt output is provided, indicating current limit,
thermal limit, and undervoltage. A shutdown pin is
also available, and can be used to quickly place the
device into the lowest-power state. Each functional
block can be enabled or disabled to optimize power
dissipation through the serial peripheral interface
(SPI),
The AFE032 is housed in a thermally-enhanced,
surface-mount, PowerPAD, QFN-48 package.
Operation is specified over the extended industrial
junction temperature range of –40°C to +125°C.
PA_IN
PA_VS PA_ISET
PA_OUT ZC_IN3 ZC_IN2 ZC_IN1
APPLICATIONS
DVDD
DGND
• eMetering
• Home Area Networks
AVDD1
AVDD2
AGND1
AGND2
Bias
and
References
Power
Amplifier
• Lighting
• Solar
• Pilot Wires and EVSEs
SCLK
DIN
DOUT
CS
DAC
Digital Interface
(SPI)
AFE032
DESCRIPTION
SD
RX_FLAG
TX_FLAG
Control Registers
DAC
TX PGA
The AFE032 is a low-cost, integrated, power-line
INT
communications (PLC), analog front-end (AFE)
device capable of transformer-coupled connections to
the power-line while under the control of a digital
signal processor (DSP) or microcontroller. This
device is ideal for driving high-current, low-impedance
lines up to 1.9 A into reactive loads.
XCLK
DAC_OUT TX_PGA_IN
ZC1
ZC2
ZC3
RX PGA2
Programmable
Filter
RX PGA1
ZC_OUT1
ZC_OUT2
ZC_OUT3
PA_GND
TSENSE
RX_PGA2_IN
RX_PGA2_OUT
RX_F_OUT
RX_PGA1_IN TX_F_OUT
1
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 is a trademark of Texas Instruments.
2
Illinois Capacitor is a trademark of Illinois Capacitor, Inc.
3
SPI is a trademark of Motorola Inc.
4
All other trademarks are the property of their respective owners.
5
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 © 2013, Texas Instruments Incorporated