nRF21540 PA gain versus temperature

[skajam66]

Hi,

Is there any published data on the PA gain versus temperature? I do not see anything in the product specification.

Kind regards,

Andrew Coad

[PaKa]

There are figures for the the calibrated 20dBm and 10dBm gain settings in the Production Specification under typical characteristics.

[skajam66]

Yes, I see that. Is there any published data on how the PA gain varies over the operating temperature range?

[skajam66]

Ah! I see it in the FEM power models section. Many thanks. AC

[PaKa]

And do note: if you use the nRF21540 and set up your nRF Connect SDK project to control this through both pins and SPI then it will have automatic temperature compensation for the gain in the FEM as well as the gain in the SoC used. Easiest way to make temperature compensation as it is already done :-)

[skajam66]

Yes, thanks for that. Unfortunately, we do not use the SPI interface...