NFC antenna amplifier/Resonance Circuit project

[Satur9]

Something like this.

Designing NFC "Antennas"

This is for @Taggart to help explain winding your own LF coils. I just posted here to consolidate information for reference later. Here’s a link their original thread. First it’s always a good idea to check the datasheet for the chip if you have it for the input capacitance. Luckily DT hosts the ATA5577C Datasheet for just this reason. If you check out the Electrical Characteristics section you’ll see the available options. [t5577Caps] I’m under the impression 330pF is the most common, but i…

If it is genuinely a n EM4100 and not just a T5577 I’m not sure what the capacitance is, but you can find the datasheet somewhere.