In my design, I don't need audio feature, and I intend to use similar design as showed in ADV7511_ADV7343 _Eval_Schematic.pdf, how do I eliminate audio? Just leave audio portion not connected is ok?
Yes, if the IC connected to ADV7511/ADV7513 has digital video output but not digital audio output, you should put pull-down resistors on the ADV7511/ADV7513 audio inputs and set the bit labeled "Audio Sample Packet Enable" to 0 (Disabled).
If you only want DVI functionality of ADV7511/ADV7513, you can connect the unused audio inputs to ground. My personal preference is to use a pull-down resistor for each audio input pin in case you want to experiment with these pins.
ok and thanks. My intention was to only pass the video to HDMI connector, so leave audio inputs LOW would not impact the video from converting to HDMI, right?
Great to know that. I am going to try it in my design.
More questions and would you mind share your expertise?
I want to have 2 ways video output in my design, one way is to pass 24 line digital video signals to a LCD module, and the other way is to pass these 24 lines to ADV7513 to enable a HDMI interface.
Is there any special considerations to have this design? Specially how do I connect these 24 lines to 2 ways at the same time, any mux is needed? If no, any SI concerns? If yes, which mux do you suggest?
Looking forward to hear from you soon.
Please mark the previous question as answered and create a new thread so we can track it.
Done and thanks. I will start another thread to track more questions.
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