USB Microphone (Microphone in ADC digital audio input)

Characteristics:
1. Complies with USB V2.0 specification for full speed operation
2. Complies with USB Audio Device Class Specification V1.0
3. Support USB sleep/resume mode 48KHZ recording sample rate for Mic application in record only mode, the sample rate for 8KHz, 11.025KHz, 22.05KHz, 44.1KHz and 48KHz are supported + 20dB microphone boost (default enabled) is declared as AGC for default USB audio driver control
4. Compatible with Win 2000 / Win XP / Win 7 and Mac OS X without additional driver

Specification:
1. Directional characteristic: omnidirectional
2. Sensitivity range: -58+1db at 1KHZ (0db=1V/uba) RL=2.2Kohm VCC=3.0V
3. Impedance: 2.2 kohm + 30% at 1 kHz (RL = 2.2 kohm)
4. Frequency response: AS Fig.3
5. S/N ratio: more than 58dB
6. Maximum input sound level: 115Db SPL
7. Working voltage: 2.0V (1.1~10V)