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AFE7422EVM: can not work in Mode2, and capture wrong data in Mode3

Part Number: AFE7422EVM

I use AFE7422EVM and TSW14J57

1   In Mode 3,capture wrong data

correct data

wrong data

2 In Mode 2,can not capture data

3 in Mode4,will never capture wrong data

  • In Mode3,  half time capture wrong Data,half time capure correct data. NCO=1700MHz, input signal=1720 MHz,-30dBm

  • Hi Li Yang,

    I would like to apologize for the inconvenience. The reason that you are seeing these issues is that during the design of the EVM a couple of modes were not robustly tested on the EVM. Mode 4 was robustly tested and as you have seen will be a good mode for testing purposes as shown in the User's Guide and getting started videos.

    Regards,

    David Chaparro