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AD9874 freqency IQ

Question asked by tusiek112 on Jun 24, 2017
Latest reply on Jun 26, 2017 by tusiek112

Hello  

 

I have some question about frequency complex data I/Q .
Settings :
IF = 10.7MHz
LO = 13.95MHz
Fclk = 26MHz
Fclk/8 = 3.25MHz
M = 15
K = 0
= 28kSPS

 

I generated on generator clear carrier wave 10.7MHz (IF) and received I/Q about 40 Hz and I don't know why. In attachment I sent chart in matlab. Signal I, Q and sqrt(I^2+Q^2).

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