How does the LMH1251 YPbPr to RGBHV Converter and 2:1 Video Switch work?
Using the integrated 2:1 MUX, there are two possible signal paths. The input can take an RGBHV input and simultaneously take a YPbPr input. • RGBHV video source (input) is selected: If the RGBHV input is chosen via the 2:1 MUX, the RGB video and H/V syncs are sent through the chip to the output pins, unchanged and unaltered. The RGBHV has a 400 MHz path for video resolutions up to and beyond the UXGA standard (1600×1200). • YPbPr (Component) video source (input) is selected: If the YPbPr (Component) source is selected, the signal is converted to the RGBHV format and then sent to the output pins. The product will automatically detect which format of video (480p, 720p, 1080i, 1080p) and apply the proper conversion technique. The sync processor strips the sync information off of the Y and converts to H and V at the outputs. Similarly, the Pb and Pr information is sent through the complex color space matrix to convert the video color information to the R, G, and B format at the outputs. Th
