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Directional Microphones |
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sD-MIC Technical Specifications
Diffuse Field AI-DI Performance:
˜ 5 dB ITE
˜ 3.8 dB for BTE
Sensitivity (dB re 1 V/ubar @1kHz)
Omnidirectional: -56 ± 3 dB
Directional: -56 ± 3 dB
Output Impedance
Omnidirectional: 4400 Ohms (nom)
Directional: 4400 Ohms (nom)
Input Referred Noise Level
(A-weighted, 1KHz ref.)
Omnidirectional: 24 dB SPL (nom)
Directional: 34 dB SPL (nom)
Current Drain (0.9V supply)
80 µA (nom)
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The ER family of Directional Microphones is covered by U.S. patents #5,878,147 and other patents pending and applied for.
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