PCM2704 USB sound card/DAC, size: 55 * 50 mm A USB input, coaxial, optical fiber and the analog output. With the volume on the board to add and subtract and mute control.
Main chip level using BB company HIFI PCM2704 USB decoding chip, its performance is superior to the most commonly used on the market of low-end CM102S series chips, power supply, power is supplied by USB output can be directly connect headphones, also can do before class. Digital output to provide more advanced DAC decoder SPDIF digital signal, in order to get a better sound quality. Because it is the external sound card, to avoid the serious electromagnetic interference inside the case, signal-to-noise ratio and the quality has improved. PCM2704 is a monolithic analog-to-digital conversion chip. It has two analog switch output channel and one integrated USB interface controller. Accord with standard of USB1.1 interface. PCM2704 can receive 48 KHZ, 44 KHZ and 32 KHZ sampling rate of 16 bit stereo or mono audio data, volume and mute function of chip internal integration, and can be synchronized to adjust the volume and mute of computer.
Support the sampling rate: 16 bit and 32 k, 44.1 k, 48 k Photos are for reference only, the terminal color in kind prevail.
Power supply voltage: 5 V (USB power supply)
Distortion: the THD + N: 0.006% (RL > 10 k ?)
Distortion: the THD + N: 0.025% (32 ? RL =)
Signal to noise ratio: 98 dB /Dynamic range: 98 dB
Headphone output power: 12 mW (RL = 32 ?)