The BTM is an improved version of the TM microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BTM is ideal in directional applications as a matched omni-directional pair.
Knowles is the originator of balanced armature technology which they apply to their receiver, specialty transducers and hearing aid products. Knowles is also a market-leading manufacturer of MEMS microphones, electret microphones, voice processors and acoustical component accessories.
| Product status | Active |
|---|---|
| Description | EC ST microphone |
| Diameter / length [mm] | 7.24 |
| Width [mm] | 3.57 |
| Thickness [mm] | 1.70 |
| Directivity | Omnidirectional / Directional |
| Impedance [Ohm] | 5200 |
| Nominal Voltage [V] | 1.3 |
| Sensitivity @ 1kHz [dBV re. 1V/Pa] | -35.5 |
| Sensitivity Tolerance [± dB] | 3 |
| SNR [dB] | 65 |
| AOP [dB] | 120 |
| Connection | 3-Wire |
The BTM is an improved version of the TM microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BTM is ideal in directional applications as a matched omni-directional pair.
| Product status | Active |
|---|---|
| Description | EC ST microphone |
| Diameter / length [mm] | 7.24 |
| Width [mm] | 3.57 |
| Thickness [mm] | 1.70 |
| Directivity | Omnidirectional / Directional |
| Impedance [Ohm] | 5200 |
| Nominal Voltage [V] | 1.3 |
| Sensitivity @ 1kHz [dBV re. 1V/Pa] | -35.5 |
| Sensitivity Tolerance [± dB] | 3 |
| SNR [dB] | 65 |
| AOP [dB] | 120 |
| Connection | 3-Wire |
Knowles is the originator of balanced armature technology which they apply to their receiver, specialty transducers and hearing aid products. Knowles is also a market-leading manufacturer of MEMS microphones, electret microphones, voice processors and acoustical component accessories.
| Product status | Active |
|---|---|
| Description | EC ST microphone |
| Diameter / length [mm] | 7.24 |
| Width [mm] | 3.57 |
| Thickness [mm] | 1.70 |
| Directivity | Omnidirectional / Directional |
| Impedance [Ohm] | 5200 |
| Nominal Voltage [V] | 1.3 |
| Sensitivity @ 1kHz [dBV re. 1V/Pa] | -35.5 |
| Sensitivity Tolerance [± dB] | 3 |
| SNR [dB] | 65 |
| AOP [dB] | 120 |
| Connection | 3-Wire |
The BTM is an improved version of the TM microphone. It offers enhanced PFA performance, as well as power-on reset and an electrical high pass filter. The BTM is ideal in directional applications as a matched omni-directional pair.
Knowles is the originator of balanced armature technology which they apply to their receiver, specialty transducers and hearing aid products. Knowles is also a market-leading manufacturer of MEMS microphones, electret microphones, voice processors and acoustical component accessories.
Headquarters
SAS SELTECH
2, Allée des Cerisiers
F – 94042 Créteil FRANCE
Tel EU : +33 1 48 92 90 02
Tel NA : +1 (919) 481 6896
SELTECH is an international solution provider with deep expertise in acoustics and sensors. We offer innovative solutions to our customers’ challenges, from design to production.
