{"product_id":"pcm2704-usb-dac-audio-decoder-board-with-optical-coaxial-output","title":"PCM2704 USB DAC Audio Decoder Board with Optical \u0026 Coaxial Output","description":"\u003cdiv class=\"product_info\"\u003e\n\u003ch2 class=\"sing--sub-heading\"\u003e\u003cstrong\u003ePCM2704 USB Audio Decoder Board – HiFi USB DAC with Optical and Coaxial Output\u003c\/strong\u003e\u003c\/h2\u003e\nThis \u003cstrong\u003ePCM2704 USB audio decoder board\u003c\/strong\u003e uses a \u003cstrong\u003eHiFi-grade PCM2704 USB decoder chip\u003c\/strong\u003e, offering better performance than commonly used CM102S series chips. Designed as an \u003cstrong\u003eexternal USB sound card\u003c\/strong\u003e, it helps reduce electromagnetic interference from the computer chassis, resulting in improved \u003cstrong\u003esignal-to-noise ratio and overall sound quality\u003c\/strong\u003e.\u003cbr\u003e\u003cbr\u003eThe board is \u003cstrong\u003eUSB powered\u003c\/strong\u003e and can directly drive headphones, while also providing \u003cstrong\u003eSPDIF digital output\u003c\/strong\u003e for connecting to advanced external DAC decoders. With an integrated USB interface controller and dual DAC output channels, it supports multiple sampling rates and delivers clean, detailed audio for HiFi listening and DIY audio applications.\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003eHiFi-grade PCM2704 USB audio decoder chip\u003c\/li\u003e\n\u003cli\u003eUSB input with coaxial, optical, and analog audio output\u003c\/li\u003e\n\u003cli\u003eUSB powered operation with direct headphone drive support\u003c\/li\u003e\n\u003cli\u003eExternal sound card design reduces electromagnetic interference\u003c\/li\u003e\n\u003cli\u003eIntegrated USB interface controller\u003c\/li\u003e\n\u003cli\u003eDual DAC output channels for stereo audio\u003c\/li\u003e\n\u003cli\u003eSupports system volume control and mute synchronization\u003c\/li\u003e\n\u003cli\u003eCompact design suitable for DIY and audio projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003eDecoder Chip: PCM2704\u003c\/li\u003e\n\u003cli\u003eSupply Voltage: 5 V DC (USB powered)\u003c\/li\u003e\n\u003cli\u003eUSB Audio Standard: USB 1.1\u003c\/li\u003e\n\u003cli\u003eSupported Sample Rates: 32 kHz, 44.1 kHz, 48 kHz\u003c\/li\u003e\n\u003cli\u003eAudio Resolution: 16-bit stereo or mono\u003c\/li\u003e\n\u003cli\u003eTotal Harmonic Distortion + Noise: 0.006 percent (RL greater than 10 kΩ)\u003c\/li\u003e\n\u003cli\u003eTotal Harmonic Distortion + Noise: 0.025 percent (RL = 32 Ω)\u003c\/li\u003e\n\u003cli\u003eSignal to Noise Ratio: 98 dB\u003c\/li\u003e\n\u003cli\u003eDynamic Range: 98 dB\u003c\/li\u003e\n\u003cli\u003eEarphone Output Power: 12 mW (RL = 32 Ω)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003e\u003cstrong\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003eWindows XP\u003c\/li\u003e\n\u003cli\u003eWindows 8\u003c\/li\u003e\n\u003cli\u003eMac OS 9 and Mac OS X\u003c\/li\u003e\n\u003cli\u003eAndroid 4.1 and above (OTG supported devices)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003e\u003cstrong\u003ePhysical Attributes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003eBoard Size: 65 × 50 × 24 mm (including terminals)\u003c\/li\u003e\n\u003cli\u003eWeight: Approximately 21g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003e\u003cstrong\u003eApplications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003eUSB external sound card applications\u003c\/li\u003e\n\u003cli\u003eHiFi audio decoding and playback systems\u003c\/li\u003e\n\u003cli\u003eDIY DAC and audio projects\u003c\/li\u003e\n\u003cli\u003eDigital to analog audio conversion\u003c\/li\u003e\n\u003cli\u003eHeadphone amplifier and audio testing setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003e\u003cstrong\u003eImportant Note\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003ePCB color may vary depending on manufacturing batch and stock availability\u003c\/li\u003e\n\u003cli\u003eThis does not affect product performance or specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product_info\"\u003e\n\u003ch3 class=\"sing--sub-heading\"\u003e\u003cstrong\u003ePackage Includes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"pro-ds ls-n\"\u003e\n\u003cli\u003e1 x PCM2704 USB Audio Decoder Board\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"KitsGuru","offers":[{"title":"Default Title","offer_id":48627755122940,"sku":"KG1362","price":399.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/2130\/4757\/files\/PCM2704USBDACAudio_1.jpg?v=1766837300","url":"https:\/\/kitsguru.com\/products\/pcm2704-usb-dac-audio-decoder-board-with-optical-coaxial-output","provider":"KitsGuru","version":"1.0","type":"link"}