AN4488 Application note - STMicroelectronics
–VDDA can be connected to VDD through a ferrite bead. V e h –T REF+ pin can be connected to VDDA through a resistor. • For the voltage regulator configuration, there is specific BYPASS_REG pin (not available on all packages) that should be connected either to V SS or VDD to activate or deactivate the voltage regulator specific.
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