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Internal Tx LO Leakage and Tx QEC Initial Calibrations test signals

Question asked by Chris449 on Sep 8, 2017
Latest reply on Sep 15, 2017 by Chris449

Hello,

Using the AD9375 eval board (ADRV9375-N/PCBZ) and TES with the Tx QEC box checked, I killed a PA. After reading your user guide (UG992 page 89), I realized that I was doing a mistake, PA must be switched off.

 

Knowing that the current of the PA power supply was limited to 1A (PA cons. with LTE20MHz 10dB PAR is around 0.9A) , I would like to better undersand the killing process.

 

Please, could you add some description of the process of the Tx QEC Initial Calibration. I would like to know the sequence and signal types so I can improve the PA protection in case someone does my mistake.

 

Thank you for your support.

 

Regards,

 

Chris

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