05-23-2022, 08:07 AM
Hi All,
Apologies for the simple questions, but I want to confirm a few things before we design this module into our system.
1. We are effectively using no analog signals (i.e, HDMI, Headphones, Microphone) in this design. On the baseboard we are designing I am planning to leave these pins floating. Is that okay to do?
2. I am powering the device through a DC wall wart. There is no battery in the design. For the pins that connect to the battery port of the PMIC, can I leave these open?
3. Should I power the COM from the DCIN ports, USBVBUS ports, or both? I noticed on the baseboard you design that these signals have a population option to be connected together.
4.How should the PWR_ON signal for the PMIC be used? Should it be pulled up or down to turn the device on? Or is it only edge triggered?
Apologies for the simple questions, but I want to confirm a few things before we design this module into our system.
1. We are effectively using no analog signals (i.e, HDMI, Headphones, Microphone) in this design. On the baseboard we are designing I am planning to leave these pins floating. Is that okay to do?
2. I am powering the device through a DC wall wart. There is no battery in the design. For the pins that connect to the battery port of the PMIC, can I leave these open?
3. Should I power the COM from the DCIN ports, USBVBUS ports, or both? I noticed on the baseboard you design that these signals have a population option to be connected together.
4.How should the PWR_ON signal for the PMIC be used? Should it be pulled up or down to turn the device on? Or is it only edge triggered?