AD9371 Rx 1 impedance is out

Hello everyone!

we are using AD9371 eva board, after giving input -5dBm to its input RX1 the overall impedance of the RX1 is out now. i know the max input should be -14 dBm but i gave -5dBm because AGCs were working fine. i am using Network analyzer to check the impedance RX2 is 50-52 ohms but RX1 is 120-140 ohms, i have replaced the balun too but it didn't improve at all, i also replaced 10pF and 82pF capacitors attached with balun to see if they got devalued but nothing changed can you plz suggest me any solution? or this is a permanent damage to AD9371 IC?