AD9850 or AD9851 outputs a sine wave. To convert it to square wave a comparator is used. Am I correct?
It makes no sense because sine wave is modulated out of little rectangles only to be converted back into a rectangle.
Should I look for a different DDS IC? I want to generate narrow impulses, not sine waves, as I realized. Do I need to use a comparator + resistor included in AD985X breakout boards?
Should I use this amplifier?
http://www.k8iqy.com/miscell/aneous/18dblt1253ddsamplifier/lt1253ddsamp.htm
Thanks.