Hi, ADI expert.
I am testing ADRV9025 DPD .
the ACLR are reduced by 10-12 dB after the application of DPD.
but the status shows below:
root@Q:/sys/kernel/debug/iio/iio:device2# cat tx0_advanced_dpd_status
ADRV9025 TX0 Advanced DPD Status
Basic Status:
Error Code: 13341
Percent Complete: 0%
Iteration Count: 1007
Update Count: 0
Sync Status: 4
Model Table: 0
Power Statistics:
Mean TU Power: -11.836 dBFS
Peak TU Power: -1.653 dBFS
Mean TX Power: -12.056 dBFS
Peak TX Power: -2.179 dBFS
Mean ORx Power: -14.993 dBFS
Peak ORx Power: -4.955 dBFS
Error Metrics:
Direct EVM: 3.1355%
Indirect EVM: 15.6139%
Select Error: 3.4977%
Indirect Error: 3.3741%
Error Status:
Error Status 0: metrics_mask=0x0380, action_mask=0x0001
Error Status 1: metrics_mask=0x0080, action_mask=0x0000
Persistent Error 0: metrics_mask=0x0000, action_mask=0x0000
Persistent Error 1: metrics_mask=0x0000, action_mask=0x0000
root@Q:/sys/kernel/debug/iio/iio:device2#
My question is :
The powers seemd to be right , but the Indirect EVM happened to 15%. Why did this happen . How can I resolve this problem
