8.4 Power Configurations

Three different configurations, depending on customer use, are available.
  • Single supply—The SAM9X75 SOM Series can be supplied by only one input supply (for example, a 5V AC/DC wall adapter) and other input supplies can be connected to the internal 3.3V regulator VDD_3V3. All PIO lines are supplied at 3.3V.
  • Multiple supplies—The SAM9X75 SOM Series can be supplied by a 5V supply and a backup battery. Some PIO power lines, such as VDDIOPx and VDDANA, are supplied by different LDOs for specific applications.
  • Multiple supplies with LVDS—The SAM9X75 SOM Series can be supplied by a 5V supply and a backup battery. Some PIO power lines, such as VDDIOPx and VDDANA, are supplied by different LDOs for specific applications and the VDDLVDS power line is supplied by a VDDOUT25 output supply.
Figure 8-5. SAM9X75 SOM Series Single Supply Connection Example
Figure 8-6. SAM9X75 SOM Series Multiple Supplies Connection Example
Figure 8-7. SAM9X75 SOM Series Multiple Supplies with LVDS Connection Example