IM73A135V01屬于音頻設(shè)備產(chǎn)品的麥克風(fēng)。由英飛凌科技股份公司制造生產(chǎn)的IM73A135V01麥克風(fēng)麥克風(fēng)是將聲音轉(zhuǎn)換成電信號(hào)以便存儲(chǔ)、傳輸和/或轉(zhuǎn)播的換能器。范圍從大型懸臂式麥克風(fēng)到常用的小型 MEMS 產(chǎn)品，并且可根據(jù)阻抗、額定電壓、靈敏度、頻率范圍、端口位置、整體尺寸和安裝類型進(jìn)行區(qū)分。輸出接口提供模擬、I2S、PDM 和 TDM 等種類。

描述 Description

The IM73A135V01 is designed for applications which require a microphone with high SNR (low self-noise), low

distortion (high AOP), which is also IP57 robust to dust and water.

Best-in-class Signal to Noise Ratio (SNR) of 73dB(A) enables far field and low volume audio pick-up. The flat

frequency response ( 20Hz low-frequency roll-off) and tight manufacturing tolerance improve the performance

of multi-microphone array applications.

The high performance analog microphone ASIC contains an extremely low noise preamplifier and a high

performance differential output amplifier. Different power modes can be selected in order to suit specific

current consumption requirements.

Each IM73A135V01 microphone is calibrated with an advanced Infineon calibration algorithm, resulting in small

sensitivity tolerances (± 1dB).

特性 Features

? Component level IP57 water and dust resistant

? Signal to noise ratio of 73dB(A) SNR

? Acoustic overload point at 135dBSPL

? Flat frequency response with low frequency roll off

at 20Hz

? Power optimized modes determined by VDD level

? Package dimensions: 4mm x 3mm x 1.2mm

? Differential output

? Omnidirectional pickup pattern