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AD9910 fast frequency sweeping by controlling external pin?

Question asked by JongWon on Apr 8, 2013
Latest reply on Apr 10, 2013 by sitti
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Hello.

I'm sorry about my poor english skill.

I'm user of AD9910.

I want to fast frequency sweeping.

 

I read datasheet, then I learned about DRG(Digital Ramp Generator) and RAM mode.

They seems so fast enough but I wonder something about that.

I want to control frequency sweep by external pin(etc, I/O Update and so on...) pulse.

 

About RAM mode,

I/O Update pin acts like trigger signal, then 1024 word go to DDS core automatically.

 

Could I control that each frequency output by external hardware pin?

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