TVP5158: timing latency and image discussion

Dear Champs,

Our customer ask us below problems, could you kindly give us some suggestions:

1. How long is the latency between the analog signal input to the TVP5158 and the data output?
2. When TV5158 generates images, will it use past frames? If yes, would you give me information about its method to generate images?
3. How long does longevity of TVP5158PNPR now? We need at least 5 years of life-cycle.

If you have any suggestions, please feel free to let us know.

Thanks a lot.