nRF52 TxRx current consumption using DTM

[UBAN]

I have been using a module of nRF52832. I write the Direct test mode in the module, to measure the current consumption of the Tx and Rx. DTM setting is + 4dBm, DCDC off. As a result, the current value is Tx = 22mA, Rx = 15mA.

I have two questions.

1. Current value using DTM becomes larger than the current value written in the specification. Generally, how much larger is current value using DTM than written in the specification?

2. Why is current value using DTM larger than written in the specification?

[Stefan Birnir Sverrisson]

Hi

The CPU is also enabled. If you add current consumption of the radio and the CPU then you will get according to the specification with DCDC disabled at 4 dBm:

I_TX,PLUS4dBM + I_DDFLASHCACHE = 16.6mA + 7.4mA = 24.0 mA

[UBAN]

Thank you so much!