PCB Piezotronics
PCB Piezotronics 378A04 Mic & Preamp-Low Noise 1/2" Ff Icp(Teds)
Model 378A04:Microphone and preamplifier, low noise, 1/2" free-field, prepolarized
Model 378A04:Microphone and preamplifier, low noise, 1/2" free-field, prepolarized
Key Features
Model 378A04:Microphone and preamplifier, low noise, 1/2" free-field, prepolarized
- Nominal Microphone Diameter: 1/2"
- Frequency Response Characteristic: Free-Field
- Frequency Range: (±4dB)5 to 20000 Hz
- Inherent Noise: 5.5 dB(A) re 20 µPa
- Dynamic Range: (3% Distortion Limit)>80 dB re 20 µPa
Spesifikasi
| Nominal Microphone Diameter | 1/2" |
|---|---|
| Frequency Response Characteristic (at 0° incidence) | Free-Field |
| Sensitivity (±2 dB) | -7 dB re 1 V/Pa / [2] |
| Sensitivity | 450 mV/Pa / [2] |
| Frequency Range (±4 dB) | 5 to 20000 Hz |
| Frequency Range (±2 dB) | 10 to 16000 Hz |
| Lower Limiting Frequency (-3 dB) | 2 to 5 Hz |
| Inherent Noise | 5.5 dB(A) re 20 µPa / [1] |
| Dynamic Range(3% Distortion Limit) | >80 dB re 20 µPa / [4] |
| Maximum Sound Pressure Level(Peak) | 130 dB re 20 µPa / [1] [6] |
| TEDS Compliant | Yes / [3] |
| Temperature Range (Operating) | -40 to +176 °F / -40 to +80 °C |
| Temperature Coefficient of Sensitivity (+14 to +122°F (-10 to +50°C)) | 0.005 dB/°F / 0.009 dB/°C / [1] [2] |
| Static Pressure Coefficient | -0.013 dB/kPa / [1] [2] |
| Humidity Coefficient of Sensitivity (0 to 100%, non-condensing) | ±0.001 dB/%RH / [2] |
| Polarization Voltage | 0 V / [7] |
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