We are using the ADV7177 video signal generator to generate color bar patter (internal) for testing purposes i.e measure the RGB values of each color of the color bar. As part of that, would like to the internals of the ADV7177 how color bar is being generated.
Is the NTSC color bar generation from ADV7177 is per BETACAM or NTSC standard? Have gone through datasheet of it and is mentioned that the U, V levels as per BETACAM (per Figure 57 to 61) and this means that color bar generation is as per BETACAM ? And, it is shown in Figure 53 that the color bar is 100% NTSC and whereas the color bar generation is 75% as per 100/7/5/75/7.5 which is not matching, so is the ADV7177 generates 100% color bar or 75% internal color bar signal?
If the NTSC color bar generation is as per BETACAM then we would like to know the luminescence and dominance values of each color of the color bar ? And, in which aspect the BETACAM source is differ from NTSC standard interms of color mixing (I, Q) and therefore hue and saturation ? and also would like to know more internal details and difference between them.
Thanks.
