Benm
0
- Joined
- Aug 16, 2007
- Messages
- 7,896
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- 113
I've recently started on a scanner, my first project of this kind.
I want to roughly follow what is outlined here:
http://laserpointerforums.com/f47/sound-card-dac-tutorial-40569.html
For the project, i plan to use a spacelas 20k scanner set (just arrived), the soundard dac, and a diy compensation amp and laser driver. I plan on using a ttl red and green setup, with about 200 mW for the red and about 50 mW for the green. No impressive specs, but it is a first project, so more orientation that seeking an impressive end result.
I got the soundcard: DealExtreme: $17.16 C-Media CM106 USB 2.0 External Sound Card Box with 7.1-Speaker SPDIF Optical Output and modded it for DC output. Using LFI, i've tried to put out a ilda test pattern to see what the voltages are actually like - see attached screenshots.
I want to roughly follow what is outlined here:
http://laserpointerforums.com/f47/sound-card-dac-tutorial-40569.html
For the project, i plan to use a spacelas 20k scanner set (just arrived), the soundard dac, and a diy compensation amp and laser driver. I plan on using a ttl red and green setup, with about 200 mW for the red and about 50 mW for the green. No impressive specs, but it is a first project, so more orientation that seeking an impressive end result.
I got the soundcard: DealExtreme: $17.16 C-Media CM106 USB 2.0 External Sound Card Box with 7.1-Speaker SPDIF Optical Output and modded it for DC output. Using LFI, i've tried to put out a ilda test pattern to see what the voltages are actually like - see attached screenshots.