Other Parts Discussed in Thread: TMDXIDK5718
Hello, TI Experts,
Our customer sent us a question about VDDA_xxx signals of AM5716.
They are designing the prototype board based on TMDXIDK5718 and below wiki-site.
http://processors.wiki.ti.com/index.php/AM57xx_Schematic_Checklist#Unused_Power_Rails
From this wiki-site, they understand "unused function related VDDA signals should be connected to 1.8-V power supply through ferrite beads".
And they want to know how to minimize the unused VDDA signals related logics including ferrite beads and capacitors.
Question:
If USB, HDMI, PCIE, SATA and CSI are not used,
- Those below VDDA signals can be connected to one signals through a ferrite bead to any 1.8-V power supply.
- VDDA_USB1, VDDA_USB2, VDDA_USB3, VDDA_PCIE, VDDA_PCIE0, VDDA_SATA, VDDA_HDMI, VDDA_CSI.
- No decoupling capacitor is required to those VDDA signals.
Is this understanding correct?
Best regards,
