Description
The IM69D127V11 is an ultra-high performance digital PDM MEMS microphone designed for applications which
require a very high SNR (low self-noise) and low distortion (high AOP) and which is also IP57 robust to dust and
water.
Best-in-class signal-to-noise ratio (SNR) of 69dB(A) enables far field and low volume audio pick-up. The flat
frequency response (40Hz low-frequency roll-off) and tight manufacturing tolerance improve performance of
multi-microphone (array) applications.
The digital microphone ASIC contains an extremely low-noise preamplifier and a high-performance sigma-delta
ADC. Different power modes can be selected in order to suit specific clock frequency and current consumption
requirements.
Each IM69D127V11 microphone is calibrated with an advanced Infineon calibration algorithm, resulting in low
sensitivity tolerances (± 1dB).
Features
• Component level IP57 dust and water resistant
• Dynamic range of 102dB
- Signal to noise ratio of 69dB(A) SNR
- <1% total harmonic distortions up to
123dBSPL
- Acoustic overload point at 127dBSPL
• Accurate sensitivity matching (± 1dB) for beam
forming applications
• Flat frequency response with low frequency rolloff
at 40Hz
• Power optimized modes determined by PDM
clock frequency
• Package dimensions: 3.60mm x 2.50mm x
1.00mm
• PDM Output
• Omnidirectional pickup pattern
Typical applications
• Active Noise Cancellation (ANC) headphones and
wireless earbuds
• Devices with Voice User Interface (VUI)
- Smart speakers
- Home automation
- IoT devices
• High quality audio capturing
- Cameras
- Laptops and tablets
- Conference systems