USB AUDIO(音频转换器，PCM2902）

本卡采用PCM2902芯片 ，USB接口输入，输出稳定，频响好，音质好。

采用RCA立体声输入，输出，方便连接家庭影院。

还具有光纤输出。

性能参数：Technical data 

*Simple computer connection via USB
*"Class Compliant" device - NO driver installation necessary, runs directly under Windows 2000 SP4, Windows XP SP2 and Windows Vista
*16 Bit AD/DA Converters
*Sample rate 32.0 kHz, 44.1 kHz, 48.0 kHz
*Frequency response 10 Hz to 20 kHz, ± 1 dB @ 44.1 kHz sample rate - 10 Hz to 22 kHz, ± 1 dB @ 48.0 kHz sample rate
*THD 0.05 % typical. @ -10 dBV, 1kHz
*Crosstalk -77 dB @ 0 dBV, 1 kHz
*Signal-to-noise ratio A/D 89 dB typical. @ 1 kHz, A-weighted - D/A 96 dB typical. @ 1 kHz, A-weighted  
*Adjustable stereo input for LINE level devices.
*Stereo output for LINE level devices.
*S/PDIF digital output (RCA).
*Adjustable stereo headphone output for headphones.
*USB Powered, i.e. power supplied via USB connection of the computer
*Indicator-LEDs for peak and signal
*Dynamic range: >86 dB (A)