Feature: 1. Standard Design: Single chip USB stereo audio DAC with full speed controller that conforms to USB and S/PDIF standard protocol. 2. Easier Decoding: Adopting excellent structure, the stereo decoder module can restore audio clock from USB packet, very reliable. 3. Perfect Fitting: The USB to I2S DAC module has wide compatibility, which supports single ended headphone output and S/PDIF output. 4. Stabler Playing: Through PLL analog, the stereo audio decoder module enables low clock jitter playback for highly stable playing. 5. Easy to Install: Comes with a light weight and a compact size as well, the PCM2706U2 DAC module is very convenient to install. Specification: Item Type: Stereo Audio Decoder Module Voltage: 5V Digital Input Clock Frequency: 12MHz Input Current from Any Pin but Power Supply): ± 10mA Environmental Temperature Under Bias Voltage: -40℃ to 125℃ Storage Temperature: -55℃ to 150℃ Node Temperature: 150℃ Welding Cable Temperature: 260℃, 5s. Peak Packaging Temperature Under Infrared Reflow Soldering: 260℃. Package List: 1 x Stereo Audio Decoder Module2 x Pin Header