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ADF4169 Fast Ramp Mode control w/ TXdata pin or external trigger ?

Hi all,


Our customer will plan to design the FMCW radar w/ ADF4169.


Using the function "Delay Between Ramps" and "Fast Ramp Mode" of ADF4169,

can we control like the "Digital Ramp Generator (DRG) of DDS" ?

It is only used "FSK or PSK mode", and "External Control of Ramp Steps mode" ?


Controlling the toggling the TXDATA pin,can not we use at "Fast Ramp Mode" ?

We expect the following behavior,
using the external trigger signal (TXdata pin ?),
lower limit > start ramp up ( w/ external trigger ? ) > upper limit > ramp down > stop lower limit > start ramp up ( w/ external trigger ? ) > repeat ...


Best regards,

sss