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Why BBP get a distorted signal in AD9364 Rx path?

Question asked by Jess-J on May 14, 2018
Latest reply on May 15, 2018 by Jess-J



I am debugging AGC . I set slow attack mode, full table and set the outer threshold high is -1dBFs、inner threshold high is -2dBFs、inner threshold low is -3dBFs、outer threshold low is -4dBFs. But the BBP captured a distorted signal.


And I changed the threshold is -7dBFs、-8dBFs-、9dBFs、-10dBFs. The BBP captured a normal signal.


The digital gain is 0dB.


I am confused why get a distorted signal.


Best Regards.