pegasus21 0 Report post Posted October 31, 2006 Wah lol. Like that looks like I'll have to source for parts and pray I can find them. Thx. Share this post Link to post Share on other sites
pegasus21 0 Report post Posted October 31, 2006 Some things I don't quite understand about the configuration selection yet. The best configuration would be a floating regulator with virtual ground right? If that's the case, can I still power it using USB or will I have to supply an external power supply? Share this post Link to post Share on other sites
heady 0 Report post Posted November 1, 2006 Some things I don't quite understand about the configuration selection yet. The best configuration would be a floating regulator with virtual ground right? If that's the case, can I still power it using USB or will I have to supply an external power supply? I am no expert but this is what I know. There is no best configuration, it depends on how you want to power the DAC. There are 4 options: 1. Unregulated from the USB 2. Regulated from the USB 3. From a power supply 4. From a headphone amplifier. For option 1, you won't need IC3 and IC4. Option 2 means you won't need IC4, everything else is required. For option 4, you will need all, IC2, IC3 and IC4. I am not sure re: option 3. The config you talked about seems to be option 4. The IC4 is required because headphone amps normally use a virtual ground and the DAC doesn't. I used option 2 which is what most people are using. FYI - the IC2 and IC3 are hard to find. Share this post Link to post Share on other sites
pegasus21 0 Report post Posted November 1, 2006 I see. Thanks for clearing it up for me. Yes IC3 is hard to get however Farnell carries IC2. I've managed to sourced IC1-3 so I'll probably build configuration 2. Digikey seems to send to SG too. Share this post Link to post Share on other sites
