We found the failure 3 of 12 pcs and test condition is as below. Would you kind to clarify if any ignore to cause IQ amplitude unstable from AD-FMCOMMS3-EBZ ?
FDD mode , loop back test (Tx to Rx)
Carrier frequency : 1.5 GHz
Bandwidth : 56MHz
Data rate: 61.44Mbps
Normal : IQ amplitude is stable during time (Y-axis is amplitude and X-axis is sampling )
Abnormal: I seems normal but Q is unstable of amplitude
Thanks a lot.