I'm looking for a solution to embed a solution in a system that will convert HDMI or DVI-D to S-video NTSC/PAL. The digital video signal can be adjusted to any resolution. Any suggestion what's the simplest solution for this is?
Unfortunately there are no simple solutions. You need a format converter, something similar to the ADV8002. The ADV8002 will take any input format and convert it to S-video. It does frame rate conversion, size formatting and progressive to interlaced conversion. Basically anything to S-Video.
That's a huge overkill.....
Not really--- There is no way around a scaler if you want "anything" to NTSC/PAL... that's a big problem to solve.
Scaler yes, though in my case it's not really anything - I need a single HDMI known/fixed digital video format input and an NTSC/PAL output. The ADV8002 can do way more than that.
You still have to do resize, frame rate conversion and progressive to interlace conversion even if it's a fixed HDMI input. If you input was NTSC on the HDMI link then it would be much easier but by the previous posts I'm assuming the input is not NTSC.
of course, though there's no need to support any format etc. In theory the digital video interface can also negotiate the format needed, but this can be set in the system to any available output format. The ADV8002 has more inputs, outputs and options than my receiver and TV combined.
Now assuming the digital source can output NTSC then something along the lines of an ADV7611 for the receiver connected to ADV739x would work just fine.
You'll have to program the parts over I2C for this mode of operation.
BTW, If the source is true HDMI with encryption then you need to check into becoming an HDCP adopter Then you can purchase the ADV7611 keyed part. Else you can buy the ADV7611-P (keyless) and receive unencrypted DVI or HDMI signals only.
It's un-encrypted so that's not an issue. The output is a DVI-D from a PC which I'll have to check the possible outputs for it. Both of these needs to be initialized through I2C?
Unless you have a special video card, I doubt the PC can output NTSC. Normally it's a progressive scan like VGA.
Yes, both parts need to be initialized over I2C.
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