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AD9371 TxQEC when used with an external LO

Question asked by Perry Employee on Dec 15, 2016
Latest reply on Feb 21, 2017 by Perry

Hi,

On AD9371 EVB(narrow band), Tx QEC performance degrades (down to -40dBc) especially at around 3.1x GHz ~ 3.2x GHz when used with external LO. Is it due to the bad return loss of the balun populated on the external LO port on the EVB? Please inform what causes and how to improve this.

 

Thanks,

Perry

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