NT3H2111 vs QI

[dzenbo]

We have QI coil and NFC coil-antenna that placed coaxially on top of each other. Does NT3H2111 chip compatible to operate with voltage levels in antenna stressed by fields that QI charger generate?

Thanks

[dzenbo]

I just put in series decoupling capacitor (something about 1nF) after NFC coil. All good)

[IvanRuiz]

Hello,

No, It is not possible for the tag (NT3H2111) to operate within the Wireless charger frequency, it is needed to design a pass-band filter which operates above the QI frequency up to the NFC cutoff frequency. So that the tag's IC doesn't get damaged.

Regards,

Ivan.