Part Number:TIDA-00721
Tool/software: Code Composer Studio
Hello All;
I've been using the reference design but the NFC chip didn't detected by mobile or NFC reader,
I used the same code and schematic in the reference but nothing!
I used both rigid and flexible PCB, and I used LCR to measure the L of the antenna and found that it gave around 630uH on the rigid PCB but when I calculate the tuning capacitance for that it gave (~34-35pF) different from what shown in the reference design (39pF), is this the issue!
I consider the internal capacitance of the NFC chip in my calculation (35pF) but I mean the result gave minus -34pF
what I can do!