ftp://jjlarkin.lmi.net/Board39.jpg
This is an 8-layer mixed-signal thing. On the left is a PCIe interface to a Kontron mini-ITX sbc.
Upper-right is a cluster of five spread-spectrum switching regulators, all inductor isolated from everything coming and going. I may slice some ground planes around there just to terrify Joerg.
The brown pour is where the pipeline ADC is, differential fed from the two SMB connectors to its right.
This also has a couple of 128 Ms/s arbs and tons of various digital i/o things and some DDR2 dram to feed the arbs, and a programmable microengine to fire shots. The FPGA is a Spartan 6/45, which we actually have now.
The Brat did the layout; not bad for a psychology/softball/beer pong major.
John