I have ADRV9029/26 EVB depend on guide the power can be +_6dbm max how can i change the power output from TX port in 9026?Please
Can you do a DPD model sweep, get an optimised one and test with the same?
What is the raw ACLR of the PA? How much correction are you getting?
Can you please provide us the DPD tracking config. parameters and the DPD statistics?
What is the ORX gain Index?
Can you please test at 3dB backoff from the target power and check the DPD performance?
when i send the signal direct from signal generator to PA
You mean directly from the signal generator to the PA input, no ADRV involved? Which Test model is this?
but when I send through ADRV I got
Can you check at lower powers, may be about 3dB backoff and see if the spectrum is fine?
Are you measuring with the same test model as above?
I believe the input signal to Rx. input is within the dynamic range and not saturating the Rx path?
Try to provide RF input somewhere around -25dBm or so at the Rx. input.
Whats your DPD tracking calibration configuration? You can try optimising the parameters such as Regularization value, Peak search window size, change the DPD update mode (2 for GaN PA) etc. Also, you may do a model sweep to identify the best model for your PA
I was going through ADRV9029 data sheet and have found following paragraph page(128):
"The DPD is optimized for power amplifiers with rms output powers in the 250 mW to 10 W range"
I need to used for two amplifiers in a balanced configuration for get 42dBm (ideally), it will be higher than 10w. will DPD be still working for this power level?