I'm doing reverse engineering on a hardware of an equipment, this equipment is able to identify the presence of a RF signal from a key fob.
Unfortunately, it was not possible to identify the integrated circuit, it has a mask, a number that makes no sense to me and I was not able to find information about it.
I don't know either the exactly values of the capacitors, I cannot remove them from the circuit. So, I would like to know, based on the incomplete information of the figure below, could someone identify, or make a guess, about which integrated it would be?
Below is the image of the antenna of the circuit. The other circuit components are on the other side of the board
EDITED: Below is the image of the IC, the code printed on it surface:
PS: Sorry for the lack of information in the question, any information or guess may be valid.