I have an ADV7180 feeding an ADV212. The system is designed to accept NTSC video.
Can the ADV7180 accept input from a GoPro camera?
Does anyone know of any limitations or things to keep in mind when using a GoPro with an ADV7180?
If the GoPro is outputting standard NTSC video, then it should work fine with ADV7180.
From what I have been told there are many possible NTSC settings that trade off frame rate with screen resolution.
They referred to these settings as "NTSC variations"
For example, the HERO3+ Black has the following camera settings options:
I am not sure which ones the ADV7180 / ADV212 combination can support. Any thoughts?
Those are not NTSC variations---- they are totally different formats. On the ADV212 side, as long as the format is within spec it should be ok.
On the ADV7180 though, I assume you are talking about the composite output from the optional USB cable? I really don't know-- if it's standard composite NTSC it'll work. I would imagine it would have to be or most TVs would not work but I don't know.
Why wouldn't you use the HDMI output and then use ADV7610/ADV7619 with ADV212?
The reason I am using the ADV7180 / ADV212 pair is they are already in our existing product. A customer has asked us if we can support the GoPro with its NTSC variations.
Where do I look to determine if the format is within spec for the ADV212?
I can suggest to the customer which formats I can support. Based on my chip pairing is there some that would seem better than others? Worse than others?
1) Pixel clock under 75Mhz
2) Tile size under 1.048M samples (assuming lossy)
3) Throughput under 65MSPS assuming you are using VDATA in customer video mode.
For ADV7180, I can't comment-- I just don't know what the camera puts out. You are going to need to try it. If it's actually NTSC, then it'll work and the ADV212 will only see NTSC anyway.
Our application has 6.25 Mbps allocated to video. That works fine with the normal NTSC cameras and Video Pattern Generator we use.
This is what I found looking at the USB port you mentioned:
(Supports Composite A/V cable/3.5mm stereo mic adapter, not included)
I need to look into what the Composite V actually is and how it relates to the "Camera Settings"
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