Manufacturers are not the only ones implementing the chip in receiver design, however; radio enthusiasts are too.
I recently discovered this short video by a Japanese hobbyist who implemented the Si4734 in his receiver design:
While I don’t speak Japanese, the author also has a webpage of detailed design notes you might check out (click here to view). I used Google translate for a rough English translation of the page.
Have any readers made a homebrew receiver from a Silicon Labs DSP chip? If so, please comment!