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ADF4169: Sawtooth Ramp in synchronization with the external trigger

Hi,

Is the following operation possible using the ADF4169?

     [1] The lamp starts in synchronization with the external trigger input. There is zero (or few ns) delay from rising edge of trigger to the lamp start.

     [2] Ramp up with 160us. Frequency linearly ramping.

     [3] Ramp down to the initial frequency with a few μs.  

     [4] The initial frequency must be maintained until the next trigger is input.

Thanks and regards,

Makio