Signal Generator Using DDS

What are you developing?
User avatar
mikikg
Posts: 10
Joined: Tue Mar 07, 2017 4:08 pm
Location: Serbia
Contact:

Re: Signal Generator Using DDS

Postby mikikg » Sat Mar 11, 2017 10:36 pm

Just for comparison, take an look on those two screen shots of AD9850 module:

AD9850-20MHz.png
AD9850-20MHz.png (39.38 KiB) Viewed 92 times


AD9850-30MHz.png
AD9850-30MHz.png (45.35 KiB) Viewed 92 times


As you can see, sinusoidal signal is not perfect, you can obviously see quantization steps in time, and just imagine how some digital logic will work with such distorted signal at input!
Only solution for this is to go on with very high speed DDS (very expensive) clocked at >1GHz (AD9850 is clocked at 125MHz).


Return to “Projects”

Who is online

Users browsing this forum: No registered users and 1 guest