Excluding 32MHz crystal and 32KHz crystal from nRF52 custom board.

[Swapnil]

Hello,

I am developing a custom board using nRF52. In my previous custom board, the total current consumption is 15mA with DCDC regulator enabled. I want to reduce this current consumption. Is it possible to exclude 32MHz external crystal, since it is just used to control 64MHz crystal oscillator and I am not using it also. Also I have the same idea of removing 32KHz external crystal for reducing total current consumption.

Is it possible to do in that way ?

What other ways are there for reducing overall current consumption ?

[RK]

well if you're using bluetooth then no you can't remove the 32MHz crystal because it's required for radio operation. You can remove the 32kHz crystal if you want. However as others have pointed out, your current consumption is higher than it should be for the peripherals you're using and so you are most likely looking in the wrong place.