Q
We are currently using an AD9959 DDS evaluation board. I aminterested in clocking the system using the external quartz option.
Could you please suggest an option for the quartz crystal?
A
We do not recommend a specific manufacturer, but Ecliptek, Epson, Vari-L,Connor-Winfield, Wenzel, and Valpey-Fisher are known as sources for high
quality parts.
The following application note may be of some help:
http://www.analog.com/static/imported-files/application_notes/AN-419.pdf
