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I'm working on a product that uses multiple sense coils attached to an LDC1314. The design functions correctly and as expected. As the product design matures, I'm working through potential FCC certifications required to get our product to market (certified as an unintentional emitter). Does TI have any resources or knowledge of any potential certification issues related to the coil sensing chips and PCB coil traces themselves? Any potential issues to be aware of or resources for how to pass FCC?
Currently my coil-capacitor circuits are resonating in the 5 MHz +/- 10% range which causes concern for me from an FCC standpoint to certify as an unintentional emitter. That frequency can certainly be lowered with a larger cap, but I'm already at 1000pF and don't have much PCB real estate to create a higher inductance coil.
