YenYu
Member level 5
log10 vhdl
Hi pals,
Currently, i haf this problem. I wanted to down convert some IF signal.I have done quite an amount of my main program, left the last part which is my problem i'm facing. How should i implement the Direct Digital Synthesizer(DDS)? It works like that, my input,"Xi2 & Xr2", with a 120MHz will be compared with signal generated by DDS which has a sine and cosine wave, 125MHz. Output (It2 & Qt2) should be a 5MHz wave.
Saying ( Sine/Cosine (125MHz) - Xi2/Xr2 (120MHz) = It2/Qt2(5MHz) )
How to do it? I tried to implement the DDS as a component within My Down Converter but it isnt working. My Output is still 125MHz.
Hi pals,
Currently, i haf this problem. I wanted to down convert some IF signal.I have done quite an amount of my main program, left the last part which is my problem i'm facing. How should i implement the Direct Digital Synthesizer(DDS)? It works like that, my input,"Xi2 & Xr2", with a 120MHz will be compared with signal generated by DDS which has a sine and cosine wave, 125MHz. Output (It2 & Qt2) should be a 5MHz wave.
Saying ( Sine/Cosine (125MHz) - Xi2/Xr2 (120MHz) = It2/Qt2(5MHz) )
How to do it? I tried to implement the DDS as a component within My Down Converter but it isnt working. My Output is still 125MHz.