TX Power Accuracy

[WesC]

I see there is some information in the datasheet, but i would like to know if there is any data that shows the tolerance of the TX output Power.

you have a graph in the datasheet that shows output power versus voltage at 3 discrete temperatures, but how close will it hold that output power.

so, if i can hold the voltage and the temperature constant and set the nRF52 to 0dBm output. 

what will be the accuracy of the output power (+- 0.1dBm??)

i know there are many variables to this equation, but do you have any data?

[Kenneth]

Hello,

There should be a RF power accuracy specified in the transmitter specifications for the radio. This should be +-4dB. This include variation in lots, voltage, and temperature.

Best regards,
Kenneth

[WesC]

So if i set the TX power to 0dBm.  I can expect that to actually be anywhere from +4dB to -4dB?

[Kenneth]

In theory yes, have in mind that the distribution is gaussian, so it will be statistically around 0dBm, but over lots, temperature and voltage we have specified +-4dBm.