why can't I find datasheet of these devices from ADI website?
Not Recommended for New Designs
The AD9889B is a 165 MHz, high definition multimedia inter-face (HDMI®) v. 1.3 transmitter. It supports HDTV formats up to 1080p, and computer graphic...
AD9889B on Analog.com
The ADV7443 is a high quality, single chip, multi-format video decoder, graphics digitizer with an integrated 2:1 multiplexed High Definition Multimedia...
ADV7443 on Analog.com
The AD9889B can be found here
The AD7443 if in pre-release status. If you need more information on the part please contact you local FAE or sale representative. You may have to sign an NDA to get more information.
The AD8017 can be found here