I am using AD9371 in my custom board and there is a problam.
When using AD9371 to receive a 1Mhz baseband single tone signal, the amplitude of in-phase and quadrature are sometimes imbalance. It seems more likely to appear in 350MHz or 4800Mhz RF frequency and less in 2400Mhz.
I tried to readback the status of QEC and it is always pending.
So why is this problem and is this related to the RF frequency?
IQrate is 122.88MHz and rf_bandwidth is 50MHz. Thanks.