nRF7002 electrical specs for external TCXO unclear

For connecting an external TCXO reference, we need to know the specification for the slew rate and levels (Vhigh/Vlow). In the product specs, the clock accuracy is defined, but not the signal specs of the pin. (Sine, CMOS, etc)

In the same scope - in table 24, page 39, pin 17 there seems to be a typo for pin XOP. Description is "40 MHz crystal (or TCXO output if using an external TCXO)" and shall be "40 MHz crystal (or TCXO input if using an external TCXO)".

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  • Sorry, I was not reading chapter 14.3.8.

    It is possible to use an external TCXO instead of a crystal.
    This option does not require production line trimming, but it will draw more current and hence
    significantly degrade sleep performance. The TCXO should be disabled when in Shutdown mode to reduce
    current consumption. It is not possible to dynamically control the TCXO when transitioning between Sleep
    and Active states. The TCXO should have a typical clipped sine wave output of 0.4 V peak (maximum 0.6 V
    peak) and be connected through a series capacitor (typically 10 nF).

    But the typo still exists.

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  • Sorry, I was not reading chapter 14.3.8.

    It is possible to use an external TCXO instead of a crystal.
    This option does not require production line trimming, but it will draw more current and hence
    significantly degrade sleep performance. The TCXO should be disabled when in Shutdown mode to reduce
    current consumption. It is not possible to dynamically control the TCXO when transitioning between Sleep
    and Active states. The TCXO should have a typical clipped sine wave output of 0.4 V peak (maximum 0.6 V
    peak) and be connected through a series capacitor (typically 10 nF).

    But the typo still exists.

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