If nRF52840 interference by 1xMHz radiation?

[Poki Huang]

Hi:

By our stack up at Z direction, there is a touch sensor FPC coil above nRF52840 and the gap is 0.65mm

And this coil will radiate about 1xMHz radiation

Will it impact nRF52840?

Thank you~~

BR/Poki

[Poki Huang]

Hi 

I add some clear description

The FPC coil is for inductive touch sensor, above the FPC coil 0.2mm is metal

When we press metal will let metal more close to FPC coil and the FPC coil will radiation

And the radiation frequency will be around 10MHz~18MHz

Will it impact nRF52840?

Thank you~~

BR/Poki

[ketiljo]

If there are harmonic frequencies of this that falls on 32 MHz, it can impact the system clock. It also depends on field strength of the sensor signal. I think you must test this to be sure.