About VDDs of 52833

[HuiHuang]

 Hi ：

1. There  VDD1-VDD5   ， what is the difference   (function 、overflow capacity )?  

2. Do they (VDD1- VDD5) must  need  LDO  Power supply ？   can  DCDC supply for them ? ( with several shunt capacitors) ? 

3. 

• Case ID: 280783    not reponse for  if  52833 support for 2MHz  occupied bandwidth ，  can you check it again ?

THX

[ketiljo]

1. All VDD pins  must be externally connected. They are internally connected as well but the connection on the die isn't good enough to carry the current. 

2. Please refer to the reference schematic. https://infocenter.nordicsemi.com/topic/ps_nrf52833/ref_circuitry.html

3. The occupied bandwidth for a 2 Mbps BLE carrier is 2.1 MHz. For 1 Mbps and coded phy, it's ~1 MHz. Both S2 and S8 are using a 1 Mbps carrier.