loss of phase capture when switching the PWRMODE register from the SYNTHTX state to FULLTX on the AX5243 chip

Why does the phase capture loss occur when switching the PWRMODE register from the SYNTHTX state to FULLTX on the AX5243 chip?

@nblohin98

Would you please share some measurement results when " phase capture loss occur when switching the PWRMODE register from the SYNTHTX state to FULLTX" as well as project files ?

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The first two registers are changed: PWRMODE(SYNTHTX (0C)->FULLTX (0D) ) and PLLRANGINGA (the two highest bits are reset). All this happens at a frequency of 868 MHz, that is, without an external inductor.