This is a read-only archive of an earlier blog posting. Reasons for the change are at http://blog.sensicomm.com.

The permanent version of this post - with comments (if any) - is at
http://sensicomm.blogspot.com/2008/12/quad-100-mhz-ad-pcb.html

Quad 100 MHz A/D PCB

The paying customers are taken care of for a while, so it's time to update the blog. I want to test some DSP on the FPGA (filters, RF signal modulation/demodulation, etc)., so I need A/D and D/A capability. I could buy a board, but it's more fun to build my own. So I settled on a quad, 8-bit, 100MHz board that interfaces to the Xilinx or Digilent board via the 100-pin FX/2 connector. The block diagram shows one of the 4 channels. As a test, I'm capturing a signal and displaying it on the VGA output. The signal is looking reasonable. More details on my website:
http://www.sensicomm.com/main/projects/fpga/quad_100mhz_a2d.shtml

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