Hi there,
I am working on the design with DA9063.
For the backup battery VBBAT pin, can I connect it an always on power supply 3.3V instead of a real coin battery?
我想保持32 k_out总是alive even the VSYS is off.
Is that workable? Thanks!
Device:
Hi Lilhongyan
1. Powering VBBAT from an external power supply unit instead of a coin cell - There should be no problem with this.
2. Regarding generating OUT_32K with no Vsys power - no. When Vsys is removed the VDDIO supplies will be turned off and VDDIO1 supply is configured to power the OUT_32K buffer.
Kind Regards,
Elliott Dexter