AnsweredAssumed Answered

AD9364 A5 pin function

Question asked by meir.mardechayev@phnx.co.il on May 5, 2015
Latest reply on Jul 13, 2015 by tlili

Hello,

 

Attached the old datasheet that we had from the very beginning.  Please see page 11 with the pin descriptions, the table indicates that pin A5 is used for Tx_mon input.

Now, the latest datasheet (http://www.analog.com/media/en/technical-documentation/data-sheets/AD9364.pdf) shows that pin A5 should be GND and M5 should be Tx_Mon.

 

In our design we use A5 pin as the Tx_Mon input (pin M5 is tied to GND). Somehow this feature works, if we read TX_RSSI 2. This suggests that AD9364 includes both Tx_Mon 1 and Tx_Mon 2 – but we are not sure that Tx_Mon 2 works correctly. In general, Tx_Mon feature uses a portion of the receiver to measure the transmitter power – so if the IC has only one Rx path, the Tx_Mon 2 functionality may be limited, or not work correctly at all.

 

Any clarification on this issue will be appreciated.

 

Thanks and best regards,

MM

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