AN4068 Datasheet, PDF (14/63 Pages) STMicroelectronics – ST7580 power line communication system-on-chip design guide

ST7580 reference design description
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ST7580 reference design description
AN4068
The ST7580 reference design is made up of the following sections:
● ST7580 device section
● Line coupling section, including four subsections:
– Transmission active filter
– Reception passive filter
– Power line coupling
– Zero crossing coupling
● STM32 microcontroller section.
The board has also six external connections:
– AC mains (line and neutral) on CN1 connector;
– VCC (8 to 18 V) and VDDIO (3.3 or 5 V) supply voltages on CN2 connector
– SD storage card on CN3 micro SD connector
– USB interface for PC connectivity on CN4 mini-USB connector
– Digital interface on J2 (5x2 connector), collecting UART and I²C digital access to
the onboard STM32 microcontroller
– JTAG interface for STM32 microcontroller on JTAG1 connector (10x2 connector).
Figure 3. Board drawing with the various sections indicated
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Figure 4 gives a global view of the reference design.
Table 3 lists the components chosen to realize the reference design board. All the parts
have been selected in order to obtain good performance in a real case application.
The layout of the printed circuit board is reported in Figure 44, 45, and 46.
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Doc ID 022923 Rev 2