nRF8001 - DC/DC converter - AVDD pin

[didier]

Hi,

In the schematic presented in the topic 17.1 (dc/dc converter, image below) of the nRF8001 datasheet it isn't shown that AVDD should be connect to a power supply as in the topic 17.4.

dc/dc converter enabled:

dc/dc converter disabled:

My doubt is: Should I connect AVDD to Vcc_nRF when I am using dc/dc converter? Or should I just connect it to components as shown in the first picture?

Best Regards,

[Hung Bui]

Hi,

If you use DC/DC, then don't connect AVDD to VCC_nRF. When using DCDC, AVDD should be connected to DCC which will provides power to the RF part. This is shown in the first schematic you post.

[didier]

Thanks for your support!