aegis27
Newbie level 4
NFC chip with power amplifier design
hello,
I am trying to attach a power amplifier to the NFC chip so I could read out from distance (~30cm).
I though it would be quite simple but it does not work and drive me crazy..
Here is the circuit and block diagram I designed.
Would anyone could comment what I am doing wrong?
For now, I use CR95HF as a reader and it sends data to the tag but does not receive.
Output power is high enough: ~8W.
I can see perfect sinusoidal waveform at the antenna but when it was attached to RX pin, it is a little distorted.
Thank you in advance.
hello,
I am trying to attach a power amplifier to the NFC chip so I could read out from distance (~30cm).
I though it would be quite simple but it does not work and drive me crazy..
Here is the circuit and block diagram I designed.
Would anyone could comment what I am doing wrong?
For now, I use CR95HF as a reader and it sends data to the tag but does not receive.
Output power is high enough: ~8W.
I can see perfect sinusoidal waveform at the antenna but when it was attached to RX pin, it is a little distorted.
Thank you in advance.