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ADV7341 custom/non-standard video modes?

Question asked by kermes on May 25, 2012
Latest reply on May 25, 2012 by DaveD



I can see that ADV7341 supports 1080p30 which has 1920x1080 active resolution, but 1080p60 is not possible because of the pixel clock limit of about 80MHz.


I also see that if I use the standard video formats, the used standard format must be written into register 0x30.


I have the ADV7341 connected to a very flexible video source which can be configured to output any kind of video and sync timings.


But how to configure the ADV7341 chip for non-standard resolutions if I want to use other formats than listed in the datasheet, like PC/IT resolutions such as VGA 640x480p60 at 25.175 MHz pixel clock (800 total pixels, 525 total lines), to make it look like standard 480p60 on analog output?


Or for example, 1080p60 or 1080p50, but with half pixel clock and horizontal resolution (960x1080p, 1100 or 1320 total pixels, 960 active pixels, 74.25MHz), as that would still look like standard analog 1080p60 or 1080p50 on the output?