we actually have started a design with the AD9434, but i'm a littel confused about some points in the datasheet:
Figure 43 shows a AD9434 with an AC-coupled input with two 200Ohm resistors feeding CML Voltage to the analog inputs on the AD9434.
In Figure 34 I could see two internal 500 resistors doing the same.
My question is: In which cases do I need external resistors to feed the CML voltage to the analog inputs.
Also I did not find the the SPI-regsiter to control the function indicated in Figure 34.