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October 2014 DocID025925 Rev 2 1/68
68
AN4444
Application note
ST7590 PRIME compliant power line networking SoC design guide
Riccardo Fiorelli
Introduction
The ST7590 reference design has been realized as a useful tool that exploits the
performance capability of the ST7590 power line networking system-on-chip.
With this reference design, it is possible to evaluate, directly on the power line, the
transmitting and receiving performance of a power line communication node based on the
ST7590 device.
The line coupling interface is designed to allow the ST7590 device to transmit and receive
on the AC mains line using the PRIME OFDM signal within the European CENELEC
EN50065-1 standard A band, specified for “Automatic Meter Reading” (AMR) applications
(see Part 1 of Section 14: Normative references on page 63).
An STM32™ microcontroller has been included in the reference design to make it very
flexible and suitable for use as a standalone smart PLC node.
Figure 1. Main board with ST7590 and STM32
As it can be seen from Figure 1, a special effort has been done to make the reference
design compact and optimized, while including all the features enabling the ST7590 device
to perform at its best.
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