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AD9910-Profle 0 ASF Configuration

Question asked by meir.alon@weizmann.ac.il on Apr 16, 2015
Latest reply on Apr 16, 2015 by meir.alon@weizmann.ac.il

Hello

 

I am writing to the Profile0 (Register Address 0E)  ,I write the freqeuncey word to the register and i see the correct Frequency.

when i write also to the ASF bits (the upper ones in the register)  i dont see any change in the output amplitude, i use the formula in datasheet. Amplitude scale=20*log(ASF/2^14);

do i need to configure something more?.

the Amplitude scale in the formula should be negative i guess

i rearranged the formula for finding  ASF.

what is the default value there in datasheet it is ambiguase in different profiles ?

 

Thanks

Meir

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