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phase detection with vhdl-ams

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wholx

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hi everyone,

i'm working on a project with vhdl-ams. i'm not very familiar with either vhdl or vhdl-ams, so i need some help.

here is my question:

i have two std_logic_vector which are converted with ADCs and now i want to do some calculations with the detected signals. i need to do tan or even arctan calculations. how can that be done? maybe i should convert the std_logic_vector to real type? or i have to transform them back to analog?

thx in advance!
 

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