Hello AAC,
I am trying to put together an all-analog circuit to take some RGB video signals and convert them to YPbPr. The thrust of it is that I have some signal voltages Y, B, and R, and i'm trying to obtain B-Y and R-Y.
I have a fistful of AD8002 op-amps and so far none of the circuit's I've cobbled together have really worked like I expected them to.
I'm wondering if the problem is that I'm trying to use single-supply power for the op-amp, when the signal voltage needs to be able to swing negative. If so, do I need to set up a virtual ground?
What I need is a circuit that...
Thank you in advance for any help. I have a dozen more questions, but let's keep it to one thing at a time.
JFYI, what I'm trying to do is get component video out of a Sega Genesis. This is something I've heard talked about but never seen anyone do.
I am trying to put together an all-analog circuit to take some RGB video signals and convert them to YPbPr. The thrust of it is that I have some signal voltages Y, B, and R, and i'm trying to obtain B-Y and R-Y.
I have a fistful of AD8002 op-amps and so far none of the circuit's I've cobbled together have really worked like I expected them to.
I'm wondering if the problem is that I'm trying to use single-supply power for the op-amp, when the signal voltage needs to be able to swing negative. If so, do I need to set up a virtual ground?
What I need is a circuit that...
- Has high impedance at the Y input (because the Y signal needs to be separately amped and passed as output)
- Outputs the voltages B-Y and R-Y
Thank you in advance for any help. I have a dozen more questions, but let's keep it to one thing at a time.
JFYI, what I'm trying to do is get component video out of a Sega Genesis. This is something I've heard talked about but never seen anyone do.