IM66D120AXTMA1

IM66D120AXTMA1 is a high-performance digital XENSIV™ MEMS microphone. The device is designed for applications where low self-noise, wide dynamic range, low distortions, and a high acoustic overload point are required. It is based on a miniaturized microphone design and results in high linearity of the output signal within a high dynamic range. With its low equivalent noise floor, the microphone is no longer the limiting factor in the audio signal chain and enables higher performance of voice recognition algorithms. The digital microphone ASIC contains a microphone-specific THD compensation algorithm for optimal performance at high sound pressure levels (SPL), an extremely low-noise preamplifier and a high-performance sigma-delta analog-to-digital converter (ADC). Potential applications include active noise cancellation/road noise cancellation, hands-free calling / voice control, emergency call, siren detection, and road condition detection.

• AEC-Q103-003 qualified
• Automotive qualification, flat frequency response down to 7Hz for best ANC performance
• Close sensitivity and phase matching for optimum beam forming
• Extended availability to match automotive design cycles
• Digital PDM output, active THD compensation to reduce distortions at high SPL levels
• Signal to noise ratio is 66dB(A) typ (A-weighted, VDD = 1.8V ±0.1V, TA = 25°C ±5°C)
• THD, 94dBSPL is 0.1% (measuring 2nd to 5th harmonics, 1KHz, VDD = 1.8V ±0.1V, TA = 25°C ±5°C)
• Acoustic overload point (10% THD) is 120dBSPL (measuring 2nd to 5th harmonics, 1KHz, TA = 25 ±5°C)
• Supply voltage range from 1.62V to 3.6V
• PG-TLGA-5-6 package, ambient operating temperature range from -40 to +105°C