PCB schematic help needed
Posted: Mon Feb 27, 2023 12:05 am
I am new to laying out PCBs. I’m currently designing around the ESP32-C3FN4 (as a test). My questions are regarding connecting Battery power. (I apologize in advance of these questions, as I’m just learning as i go. I’m not an electronics engineer)
1) Batt+ goes to the VDDpin, but doe Batt- go to ground? Or to a different pin? [Should (VDDA)pin32 = BATT+; then have (VDDA)PIN31 = BATT- ?]
2) Since different GPIOs are on different VDDpin power domains, do i need to connect BATT+ to each of the VDDpins associated with each power domain?
Thank you for any help you can offer.
Cheers
1) Batt+ goes to the VDDpin, but doe Batt- go to ground? Or to a different pin? [Should (VDDA)pin32 = BATT+; then have (VDDA)PIN31 = BATT- ?]
2) Since different GPIOs are on different VDDpin power domains, do i need to connect BATT+ to each of the VDDpins associated with each power domain?
Thank you for any help you can offer.
Cheers