Re: AD9850/51 module pc boards
Terry,toggle quoted messageShow quoted text
I am missing a lof of decoupling caps close to the Vcc pins of the AD9850. Plöease have a look on the AD9850 data sheet, a lot of .1 µF caps are used there, althoug not easily seen where they belong to. My guess as they are on the bottom side they are close to the AD9850 pins too.
Another hint: the Analog Devicers app note "A Technical Tutorial
on Digital Signal Synthesis" from page 45 on gives good reasons to use a transformer on the DAC outputs!
Am 30.09.2018 um 05:34 schrieb Terry VK5TM:
Updated pics with the 3.3v reg underneath the Xtal osc.