HDMI to HDSDI video conversion...without FPGA. Is that possible ?

Hello !

I'm looking for a way to convert an HDMI signal (typically 1920x1080 50i) in HDSDI but without FPGA.

Do you have a solution for this? 

 I found an HDMI receiver (ADV7611) and a HDSDI driver from National Semiconductor but what should I put between that ?

Thank you for your help :)