This application note describes how to modify the AD9430 evaluation board to use a crystal oscillator clock.
The document details modifications required on the AD9430-170/210-CMOS evaluation board to interface with an external signal source instead of the default on-board differential receiver. The process involves removing specific components and placing solder bridges at the ends of the XTAL oscillator output traces.
You must remove the differential receiver and place solder bridges at the far end of the XTAL output traces.
Power is supplied using the VCLK_VXTAL pin on the power terminal block with a 0.1 uF capacitor.