AD9231, AD9573

Hi TKa303,

As you already knew, the AD9573 can provide a 100MHz LVDS clock to the AD9231. As you also already know, you'll need to divide the clock frequency to bring it within the AD9231 clock frequency range.

I checked with the AD9573 engineer. You need to supply power to all the voltage supply pins (VDDA=VDDX=VDDA=VDD=VDD33=3.3V+/-10%) even if the 33MHz output is not used. Connect GND33 to ground. I believe you can leave 33M floating, but I will confirm.

Thanks,

Doug

Hi TKa303,

As you already knew, the AD9573 can provide a 100MHz LVDS clock to the AD9231. As you also already know, you'll need to divide the clock frequency to bring it within the AD9231 clock frequency range.

I checked with the AD9573 engineer. You need to supply power to all the voltage supply pins (VDDA=VDDX=VDDA=VDD=VDD33=3.3V+/-10%) even if the 33MHz output is not used. Connect GND33 to ground. I believe you can leave 33M floating, but I will confirm.

Thanks,

Doug

Hi,

As expected, it is OK to float 33M if it is not used.

Thank you.

Doug

Thank you Doug!

You are very welcome. I wish the best for you and your project.