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STMicroelectronics Electronic Components Datasheet

ST-PLC-AFE Datasheet

analog front-end

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ST-PLC-AFE
Power-line communication, analog front-end
Features
Integrated, analog power-line driver and
receiver
EN 50065-1 - CENELEC, European bands A,
B, C, and D
Supports FSK, S-FSK, and OFDM
Supports PRIME, G3, and IEC 61334
Half-duplex mode
Thermal protection
Programmable overcurrent protection
10 V p-p single-ended output range
20 V p-p differential-ended output range
Programmable transmitter chain (Tx) and
receiver chain (Rx) filters
Programmable Rx and Tx gain control
7 V to 14 V line driver supply
Low power consumption: 10 mW (receive
mode)
Reverse sensitivity 20 µVrms typical
Four-wire, serial peripheral interface
Two integrated zero cross detectors
Temperature range: -40 °C to 125 °C
Datasheet - production data
Applications
E-metering
Smart grid applications
Smart light control
Solar energy management
Building automation
Remote monitoring and control
Description
The ST-PLC-AFE is a power-line communication,
analog front-end device capable of capacitive or
transformer-coupled connections to the power
line while under the control of a microcontroller or
a DSP.
The line driver is able to drive low-impedance
lines, requiring up to 1.65 A, into reactive loads. It
can also work in differential mode for high
performance, as well as single-ended mode for a
low-cost bill of materials (BOM). The integrated
receiver is able to detect signals down to 20
µVrms. The system works in half-duplex mode.
The AFE is protected against over temperature
and short-circuit conditions. It also provides four
adjustable current limits through an internal
register. Through the four-wire serial peripheral
interface, or SPI, each functional block can be
enabled or disabled to optimize power
consumption.
February 2016
This is information on a product in full production.
DocID028727 Rev 1
1/58
www.st.com


STMicroelectronics Electronic Components Datasheet

ST-PLC-AFE Datasheet

analog front-end

No Preview Available !

Contents
Contents
ST-PLC-AFE
1 Package pin description and connections . . . . . . . . . . . . . . . . . . . . . . . 4
2 General description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2.1 PA block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2.1.1
2.1.2
Typical connections to the PA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Power amplifier power management . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.2 Tx block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
2.2.1 Internal DAC driving mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2.2.2 External driving mode, differential-ended power amplifier mode . . . . . . 12
2.3 Rx block . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
3 Absolute maximum ratings and operating conditions . . . . . . . . . . . . 15
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
5 Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
6 SPI interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.1 SPI timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
6.2 Read/write figures in SPI mode 0.0 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7 Powering the device and resetting the SPI and registers . . . . . . . . . . 31
7.1 Turning the device on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.2 Resetting the internal registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.3 Resetting the SPI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.4 Use of an external DAC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
8 Typical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
9 System timings and interruptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.1 Rx - Tx - Rx transitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.2 Power-down to Rx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
9.3 Interruptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
9.3.1 Overcurrent condition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
2/58 DocID028727 Rev 1


Part Number ST-PLC-AFE
Description analog front-end
Maker STMicroelectronics
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