I would like to ask a question about AD9833.
ANALOG DEVICES recommends that VDD pin should be connected 0.1uF and 10uF decoupling capacitors
and CAP pin should be connected 0.1uF decoupling capasitor in datasheet Page.6.
However VDD pin is connected 0.1uF decoupling capacitor and CAP pin is connected 0.1uF and 10uF decoupling capacitors in datasheet page 22.
Which solutions ANALOG DEVICES recommned?
Best regards, Jim_Jim
There need two capacitance with pin VDD always.
If VDD more when 2,7 V, 100 nF capacitor requires, which is connected from CAP/2.5 V to DGND.
If VDD is equal to or less than 2.7 V, pin CAP/2.5 V should be tied directly to VDD, without any capacitor.