AD9361 - DC Leakag(LO) Present at TX

Dear Fellow Engineers

   i am new to the engineering community and currently working with AD9361. Through out my research so far, i have seen the Presence of DC Offset (DC Leakage from Mixer inside ad9361) on the TX side as shown below in attachment. This is the something that i would like to remove or minimize even more so that it is negligible.  Any helpful feed back or suggestions will be greatly appreciated.  Thanks

DC is at MR (Unwanted)  and M1 is just a single tone.

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  • 0
    •  Analog Employees 
    on Aug 21, 2018 7:23 AM over 2 years ago

    Are you using Evaluation board and Evaluation GUI (IIO oscilloscope) ?

    What is the output power of the tone.?

    With 0 dB attenuation and max digital power , you should get around +6 dBm at 2.4GHz. DC leakege is relative and at max output power it will be ~ -50 dBc.

    Test with 0 dB attenuation.

Reply
  • 0
    •  Analog Employees 
    on Aug 21, 2018 7:23 AM over 2 years ago

    Are you using Evaluation board and Evaluation GUI (IIO oscilloscope) ?

    What is the output power of the tone.?

    With 0 dB attenuation and max digital power , you should get around +6 dBm at 2.4GHz. DC leakege is relative and at max output power it will be ~ -50 dBc.

    Test with 0 dB attenuation.

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