Hi,
I recently designed a custom board based on PGA460, but detecting obstacles in the short-range up to 7 meters is good but for further it can't measure anything except noise. the excitation frequency is 74khz, I checked this frequency with BOOSTXLPGA460 and it was working perfectly and it could detect obstacle up to 10.5 meters which is great for my application. also, I noticed that the noise level is between 25 and 44 based on pga460evm GUI.
it would be great if you guide me through this issue to fix this problem.