About DEC pin of 52832

[HuiHuang]

Hi：

52832 has a lot of DEC pins, Q1, what does it do?

Secondly, the borrowed capacitors of DEC1-4 are not the same size, some NC, some 1 micromethod, some 100nF, and some 100pF. What is the internal circuit diagram of these pins (Q2)?

How do we debug? For example, according to which signal deterioration corresponds to which DEC?

THX

[Bendik Heiskel]

Hi,

The DEC pins are decoupling for internal voltage supply rail. The values are chosen for stable operation and noise suppression from the internal voltage supplies.

The  nRF52832 have only been verified with the decoupling capacitors on the DEC pins as described in the reference schematic, they must not be changed.

 

Best regards,

Bendik