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1. Double voice region/Noise reduction/Echo cancellation module
Operation temperature : -40℃~+85℃
Storage temperature:-40℃~+85℃
Input impedance : Max. 1K OHM
Sensitivity: -10dB ± 3dB @F=1KHz, 94dBSPL
Direction: Omni-direction(MEMS)
Operation voltage: 3.3V±10%
Bandwidth: 100Hz~7KHz (±3dB)
Current consumption:100mA~300mA
S/N ratio: >60dB
Feedback input level: Max. 0.18Vrms
THD: <1% @F=1KHz, 94dBSPL
Max. Input SPL: >106dBSPL
Acoustic Echo Tail length:64ms~80ms
Echo Cancellation Convergence: <60ms
Double voice region separation: >20dB