I am using an ADV7611 HDMI receiver and the output bus is connected to a ADV7125 DAC. Unfortunately the ADV7125 will not interface with the differential IQ lines to my ADL5375 modulator.
May I substitute an AD9785 or a AD9776A for the ADV7125? I want to get my pixel data from the ADV7611 into a DAC that will allow me to connect to the IQ lines of my modulator.
Depending on your application, could you perhaps use a mixer to upconvert the RGB data?
If you have to use the ADL5375, as edo mentioned, the I and Q inputs need to be in quadrature phase - 90 degrees…
I am going to insert a picture of what we are trying to accomplish. Thank you.