Hi All
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
Best Regards
Hi All
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
Best Regards
The full scale output power of the TRX is as below:
You can use Tx. attenuation control to change the Tx power.
BTW,Where from are you referring to +/-6dBm?
Dear Ramarao
Many thanks for your answer, but max what i can obtained of board -10 dbm whem i used the waveform or 2 tones abd ATT =0 for TX1.
Best Regards
Richs1
Hi Ramarao
I tried to measure just one tone i got
after that i changed for my Signal which is
3.5Ghz,70Mhz bandwidth
I got this
Just to conformed
3.5Ghz,70Mhz bandwidth
70MHz? Are you referring to 5G NR or any other application?
5G NR does not have 70MHz as far as i know.
Also, the measurement bandwidth is per 100MHz where as it should be 70MHz as the channel BW is 70MHz. To me, it looks like you are getting the output power as expected.
Yes this for 5G NR,
I will repeat the experiment with100 MHZ .
The output level is as expected (CW is ~5dBm and assuming ~11dB PAR, you are observing ~ -6dBm Avg power)
This should be fine.
Could i get more power from the ADRV9029/26 EVB? Please
No, that is not possible
Okay Many thanks.
Could you direct me how can I run the DPD? Please
and which model I have to chose at begging.
The steps to enable DPD are explained in the document available in the link
You can try to do a model sweep following the below link
https://wiki.analog.com/resources/eval/user-guides/adrv9029/dpd_model_optimization
Before doing the model sweep, you may try to use an existing model file and check the DPD performance.
Which PA are you using?
Cree Transistor
FXL/WS1A3640
this with DPD
Cree Transistor
FXL/WS1A3640
this with DPD
Can you do a DPD model sweep, get an optimised one and test with the same?
https://wiki.analog.com/resources/eval/user-guides/adrv9029/dpd_model_optimization
Hi Ramarao
HI Ramarao
I hope you okay, I use WS1A3640.
I tried to use the DPD to obtain the best results.
Please any possibility to have 5G waveform to upload in ADRV9026/29 to check my DPD is it work or not.
Best Regards
Rich
Due to licensing restrictions, we won't be able to share any 5G waveforms. Thanks.
Hi Ramarao
I tried to generate new model suitable for my transistor but nothing coming out {ADRV9029 DPD Model [Analog Devices Wiki]}.
Best Regards
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?
Hi Rammaro
Many thank for your help,DPD is working now.
Please could you guide me how can i receive signal from Signal generator--->ADRV board(RX)------>ADRV board TX port by using GUI.
Best Regards
Please use the attached script for the Rx to Tx loop back. If you are measuring EVM, make sure to swap the IQ in Spectrum Analyser.
Many thanks,
the steps will be
1- run the .py scripts
2-Run DPD after that.
Best Regards
Yes. Could you please let me know what are you trying to test/ achieve with the loop back test? Are you trying to measure the RX performance? If so, i would advice to test at the Tx out of the chip rather testing at PA out.