My board used ADV7441A+ADV8005 to upscale the SD PAL or NTSC signal to HD, the ADV7441A support HDMI,YPbPr and CVBS inputs, the source is a 720x576-50i PAL signal. the results were OK when the input port were HDMI and YPbPr. but the picture is tearing under the CVBS input, like this:
and then i passed through the data from adv8005's TTL input to the TTL output directory，don't use the PVSP, the picture is OK. so i can't doubt the adv7441. the issue now focus on the ADV8005's PVSP module and the de-interlacing algorithm.
and how can i fix the issue? thanks!