AnsweredAssumed Answered

AD9361 Quadrature calibration failure

Question asked by satcom on Nov 17, 2017
Latest reply on Dec 11, 2017 by mhennerich

Hi,

 

We are using FMCOMMS5 with ZC706 kit in our application.

 

During the driver initialization phase of AD9361 transceiver in the OS mode, sometimes it fails (we see additional messages like ######oo##############################oo######################## RX_NCO_PHASE_OFFSET(7, 0x7)  or ####################o##o#oo#########################o##o#oo##### RX_NCO_PHASE_OFFSET(26, 0x1A))  in the Quadrature Calibration stage. The initialization process continues till end but a high amplitude tone appears at the LO frequency. This is undesired for our application algorithm. So, firstly, please let us know if this is a known issue? Secondly, why doesn't it do recalibration upon failure? Currently we are using “hdl_2016_r2” version driver files. Have the driver files been updated in the Analog devices Github to address this issue?

 

Regards,

Satish

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