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DM816x Video DAC Questions

Dan Lawson
Prodigy 10 points

I have some questions related to the video DACs.

  1. Can the SD DAC outputs be configured to different formats (CVBS, Y/C, RGB, etc.) or is each DAC locked to a specific format/signal?  For example, can I use Video DAC D to output either CVBS or S-Video Y or RGB G?
  2. If the DAC outputs cannot be reconfigured, can they be tri-stated so that I can wire them together?
  3. Similar to question #1, but can I configure the HD DAC outputs to output SD video?
In my end application, I need to output various output formats through a single set of connectors and would like to avoid having to use an external mux to accomplish this.  Ideally, I would like to be able to configure the HD DACs as follows:
  • DAC A = G (HD or SD) or Y (SD) or CVBS (SD)
  • DAC B = B (HD or SD) or C (SD)
  • DAC C = R (HD or SD)
Thanks,
Dan