May I ask the frequency waveform of the continuous triangular ramp generated by the ADF4159. Whose frequency is the frequency of the vertical axis of the waveform? Is it the FPFD, RFIN, RFOUT, REFIN or other frequencies mentioned in the manual? How to set this parameter? Can this frequency be set at will? Or should it be set to the size of the RFIN input frequency? I think it is the frequency of the input terminal of RFIN or the frequency of RFOUT mentioned in the manual. I do n’t know, right?