The EVALST7538DUAL board integrates the ST7538 power line transceiver along with the power supply section, the signal coupling interface section, the crystal oscillator and device protections. The coupling interface section has been realized for communication on CENELEC A-band used mainly for AMR applications, with the chance of programmable switching between 72 kHz and 86 kHz communication channels. This half-duplex “dual channel” communication feature has been implemented through optimized receiving and transmitting filters on the board.
EVALST7538DUAL board must be connected to a PC through the EVALCOMMBOARD general purpose board. The dedicated SW running on the PC can be downloaded from “www.st.com/powerline” web page.
The typical application environment consists of two or more EVALST7538DUAL connected to the same mains line, each connected to its own EVALCOMMBOARD controlled by a PC running the EVALCOMMBOARD GUI software.
Main features
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