Changed external decoupling of nRF9160

[pejetro]

Hi,

In your nRF9160 Product Specification rev. 2.0, you have changed the recommended decoupling of DEC0, VDD1 and VDD2 (ref chapter 10.3 Reference circuitry).

For DEC0  the decoupling capacitance has been decreased from 47µF to 4.7µF.

For older PS's, the recommended decoupling for VDD1 and VDD2 was 4.7µF, and now the new recommended decoupling is 47µF, 100nF and 15pF for each of them.

Is this change caused by any internal change in the nRF9160 device? (from which revision?)

Can or should this new recommended decoupling also be used for older revisions of the HW? 

BR Per

[Kenneth]

Hello,

This was a change from Rev1 to Rev2:
https://infocenter.nordicsemi.com/topic/comp_matrix_nrf9160/COMP/nrf9160/nrf9160_doc_ref_design_files_overview.html

You should find relevant information browsing the nRF9160 on the left side menu, but in specific see:
https://infocenter.nordicsemi.com/pdf/pcn_134_v1.0.1.pdf

Kenneth