{"id":135,"date":"2008-06-09T14:28:30","date_gmt":"2008-06-09T14:28:30","guid":{"rendered":"http:\/\/127.0.0.1\/wordpress63\/?p=135"},"modified":"2013-03-28T22:42:49","modified_gmt":"2013-03-28T14:42:49","slug":"my-usb-convertor","status":"publish","type":"post","link":"https:\/\/diyparadise.com\/w\/my-usb-convertor\/","title":{"rendered":"My USB Convertor"},"content":{"rendered":"

Easiest step to computer audio
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My USB Convertor<\/span><\/h2>\n

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Here’s a very simple USB convertor. Plug this to your USB port, and all your music signal will go through it. No programming needed, no soundcard necessary. Just plug and play.
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The star here is PCM2706. It’s a pretty cool chip that could do three functions. It could be a USB headphone amp, it could output SPDIF data and also I2S data.
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I played with it, and unfortunately the internal DAC’s output is already over-sampled and kind of… sucks. Okay, okay, that’s too strong a word but if you are bitten by the Non-Oversampling magic, conventional DAC (meaning those oversampled types) really turn you off. What’s the magic word again? As Monica said it herself, “makes me puke”! Ha ha!
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So instead, i’ll offer her as USB Convertor instead. Takes in USB and outputs either SPDIF or I2S. Headphone amp circuitry components will not be offered.
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Also, will be offering as a kit here. Don’t worry, I’ll make it simple for you. I’ll solder in the 2 chips instead, so you just have to solder in those little surface mounted resistors\/capacitors.
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Afraid of SMD? Don’t worry! I’ll show you in a video how to solder SMD. Sorry, the clips aren’t very clear as I’m really an amateur here. I’m really better in front of the camera. Also, I kept my mouth shut so as not to distract you from viewing how to solder SMD. You know I’m quite a chatterbox…
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<\/td>\nThis is how you solder SMD. Steal, beg or borrow a pair of tweezers (or very tiny fingers).Apply a little solder to end pad. Then place the component using tweezers.Melt the solder at this end so that the solder will flow and “hold” the component. We are using the solder as a temporary “glue” here.Solder the other end of the component. Place soldering tip on BOTH pad and component. Re-orientate the PCB to do this easier, like what I did in the video. Once you feed solder, it’ll just flow like magic.Redo the first joint. Tada!<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

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smd-tutorial<\/strong>
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