AnsweredAssumed Answered

The issue about the ADV8005 received the CVBS signal

Question asked by epwujm on Aug 30, 2017
Latest reply on Aug 31, 2017 by epwujm

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:

the icon is tearing 

 

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.

condition

and how can i fix the issue? thanks!

Outcomes