Signal leakage issue of nRF5340

[ljl lierda]

In receive mode, at which frequency points does the nRF5340 have signal leakage? Is it the same as shown in the image for the nRF51?

[Priyanka]

Hi,

I am verifying this internally and will get back to you as soon as I have the answer.

Regards,

Priyanka

[Priyanka]

Hi,

On the nRF52 and later series radios, there's a low side LO at fRX - 2 MHz in 2 Mbps mode and fRX - 1 MHz in 1 Mbps mode. This can be seen on the antenna connector but at a very low level, ~-80 dBm. There's a 2nd harmonic of this that will have a higher level bit still at ~-60 dBm. At approx 2*fRX. This is where you need to check the level in RX mode.

-Priyanka