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USB Audio DAC
Posted on Sunday, November 9, 2008   •   Category: USB Soundcards / USB Headphones


I want to build high quality preamplifier with built-in DAC from SPDIF or USB for my power amplifier Leachamp. I had available circuit PCM2902. I tried to design DAC from USB with this circuit on one-sided PCB and I was successful.


USB Sound Card with PCM2702
Posted on Thursday, April 24, 2008   •   Category: USB Soundcards / USB Headphones


Make a sound card is no more a complex issue. If you use great IC PCM2702 from BURR BROWN / Texas Instruments you can create a fully functional USB sound card. This sound card can be powered from USB port and has one stereo output. You donít need to install any driver for Windows XP and Vista, because they are already inside. This is really plug and play.


PCM2706 High Fidelity USB Soundcard / USB Headphones
Posted on Monday, April 7, 2008   •   Category: USB Soundcards / USB Headphones


This is a high fidelity external USB Soundcard / USB Headphones project that can be built for your PC or Mac. It is based on the latest PCM2706 IC which functions as a high quality, crystal clear 16-BIT Stereo DAC. It is a single chip digital-to-analog converter that offers two D/A output stereo channels, digital S/PDIF output and requires very few external components. PCM2706 includes integrated USB 1.0 & USB 2.0 compliant interface controller and it is conveniently powered directly from USB connection. PCM2706 is a USB plug-and-play device and does not require any driver installation under Windows XP and Mac OSX. PCM2706 chip also provides seven functions that are controlled with tactile switches. It provides volume (up / down), Play, Stop, Previous Track & Next Track controls. These functions do not need any software or driver installation and work instantly after connecting PCM2706 to a computer's USB connector.


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