Mini PCM2704 USB sound card / DAC decoder board , size : 12 x49mm ( including terminals ) .
USB powered , analog output directly plugged into the computer 's USB port, eliminating the need for connection.
BB's main chip PCM2704 USB decoder chip HIFI level , its performance is superior to low-end market, the most commonly used chip CM102S series , power supply with USB power supply , the output can be directly connected to the headset , but also do pre- Digital outputs can be the DAC more advanced decoder provides SPDIF digital signals to obtain better sound quality due to the external sound card , within the enclosure to avoid serious electromagnetic interference , SNR and sound quality can be improved.
PCM2704 is a monolithic digital-analog converter chip . It has two output channels and digital-analog converter with an integrated USB interface controller. Interface complies with USB1.1 standard .PCM2704 can receive 48KHz, 44KHz and 32KHz sampling rate , 16-bit stereo or mono audio data integration software chip volume and mute functions , can be synchronized adjust the volume and mute the computer .
Supply voltage : 5 V (USB powered) ,
Distortion : THD + N: 0.006% (RL> 10 kΩ)
Distortion : THD + N: 0.025% (RL = 32 Ω)
SNR : 98 dB
Dynamic range : 98 dB
Earphone output power : 12 mW (RL = 32 Ω)
Supported Sample Rate : 16Bit 32k, 44.1k, 48k
Supported Platform: Win Xp/ Win7/ Win8, MAC OSX, Android v4.1 above (OTG required)
Pictures for reference only, terminal color to prevail in kind
Mini PCM2704 USB Sound Card DAC decoder board x1