Does the ADF7024 provide support for an external LNA and PA?

Can I use an external LNA and PA  with the ADF7024? If so what support does the ADF7024 provide in terms of control signals for the external LNA and PA?

  • 0
    •  Analog Employees 
    on Jul 23, 2014 3:52 PM over 6 years ago

    Yes,  the ADF7024 provides independent control signals for an external PA or LNA.

    If the EXT_PA_EN bit is set to 1 in the RADIO_CONTROL register (Address 0x11A), the external PA control signal is logic high while the ADF7024 is in the PHY_TX state and logic low while in any other state.

    If the EXT_LNA_EN bit is set to 1 in the RADIO_CONTROL register (Address 0x11A), the external LNA control signal is logic high while the ADF7024 is in the PHY_RX state and logic low while in any other state.

    The external PA and LNA control signals can be configured using the EXT_PA_LNA_ATB_CONFIG setting (Address 0x139, Bit[7]) as described below:

    EXT_PA_LNA_ ATB_CONFIG = 1:

    ADCIN_ATB3 and ATB4 used for control of external PA and external LNA, respectively (1.8 V logic outputs).

    EXT_PA_LNA_ ATB_CONFIG = 0:

    GP5_ATB1 and ATB2 used for control of external PA and external LNA, respectively (VDD logic outputs).

  • 0
    •  Analog Employees 
    on May 8, 2019 10:42 AM over 1 year ago
    This question has been closed by the EZ team and is assumed answered.