AD9914 Sweep rate

Hi all, 

I'm trying to increase the Rising and Falling Sweep Ramp Rate on evaluation software to 10ms but it caps at 113.424 microseconds. Is 10ms sweep rate possible at all?

Thanks 



typo
[edited by: AAmiri at 1:29 PM (GMT -4) on 16 Oct 2020]
  • 0
    •  Analog Employees 
    on Nov 16, 2020 5:11 AM 19 days ago

    Hi,

    The rising and falling sweep ramp rate on the evaluation software is the positive (+Δt) and negative (-Δt) slope step intervals as given by their formulas in page 24 of the AD9914 data sheet. An illustration of this parameter can also be found on Figure 38 of the following page. Just to clarify, the 10ms sweep rate that you would like to achieve is the time for the frequency to sweep from the lower limit to the upper limit? If also possible, kindly share the lower and upper limit of the sweep that you would like to achieve.

    Best regards,

    Mark