TDK InvenSense IC-40618高动态范围麦克风
TDK InvenSense ICS‐40618是一款模拟MEMS麦克风，具有极高动态范围和低功耗常开模式。 ICS‐40618包括MEMS麦克风元件、阻抗变换器和差分输出放大器。 该元件的工作温度范围为-40°C至+85°C。该麦克风具有低功耗模式，该模式在电源电压低于2.0V时启用。在该模式下，ICS‐40618的工作电流为55μA。 其他低功耗规格包括129dB SPL声学过载点和±1dB小灵敏度容差。 高性能规格包括132dB SPL声学过载点、±1dB小灵敏度容差、以及辐射和传导射频干扰的增强型抗扰度。 该器件在高性能模式下的工作电流为165μA。 ICS-40618的电声性能与ICS-40619顶部端口匹配，因此将这对麦克风结合用于需要顶部和底部端口器件的应用是相当不错的选择。 ICS‐40618采用小型3.50mm x 2.65mm x 0.98mm底部端口表面贴装封装。
High‐performance specifications includes 132dB SPL acoustic overload point, tight ±1dB sensitivity tolerance, and enhanced immunity to both radiated and conducted RF interference. The device operates with 165µA in high-performance mode.
The electro‐acoustic performance of the ICS-40618 matches the top port ICS‐40619, making this pair of microphones suitable to use together in applications requiring both top and bottom port devices. The ICS‐40618 is available in a small 3.50mm x 2.65mm x 0.98mm bottom port surface mount package.
特性
- Differential non‐inverting analog output
- -38dBV sensitivity (differential)
- ±1dB sensitivity tolerance
- Extended frequency response from 50Hz to 20kHz
- Enhanced RF immunity
- -85dB PSRR
- 3.50mm × 2.65mm × 0.98mm surface mount package
- Compatible with Sn/Pb and Pb‐free solder processes
- RoHS/WEEE Compliant
应用
- Smartphones
- “AlwaysOn” listening
- Wearable devices
- Still and video cameras
- IoT devices
Functional Block Diagram
发布日期: 2017-07-10
| 更新日期: 2022-03-10