MEMS microphones Forum Discussions
Hello,
I am willing to order this product and have it in cart for two days now. I did not find any video on how to use the adapter board. I saw only one Document which state the pin configuration for (1,3 and so on) but still not able to get the idea on how to use this board. Retired board like AudioHub Nano is plug and play and a video is present online on how to use it. For the new Flex evaluation board only one page documentation is given and nothing else. Not sure where to connect these 1,3 pins? What microcontroller etc. nothing present. Please help so I can order it and use.
Show LessHi Infineon developer community,
I am currently working on a project that involves interfacing of infineon IM69D130 digital MEMS microphone with STM32WB55G microcontroller. However, I am facing challenges in setting up the communication between the microphone and the micro controller and could use some assistance with a Library or Code Sample that allows interface.
Any help, advice or resource that can assist me would be greatly appreciated.
Thanks and regards
Manik Banagar
Show LessHello:
IM72D128V01 chip, does the clock support greater than 4.8MHz operating frequency, and if so, what is the maximum? Thank you!
smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/MEMS%E9%BA%A6%E5%85%8B%E9%A3%8E/%E5%85%B3%E4%BA%8EIM72D128V01%E6%97%B6%E9%92%9F%E9%97%AE%E9%A2%98/td-p/718800
Show LessHello! The output signal of the MEMS microphone IM73A135 is a bit on the small side and needs to be amplified. Since this microphone has a very high SNR, it needs a high performance amplifier to match it. Is there a recommended differential amplifier? It would be best if the amplitude limiting feature is available, as the sound dynamic range is large in the scene where we are capturing the sound signal, sometimes the signal overflows and causes clipping.
smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/MEMS%E9%BA%A6%E5%85%8B%E9%A3%8E/MEMS%E9%BA%A6%E5%85%8B%E9%A3%8EIM73A135%E7%9A%84%E4%BF%A1%E5%8F%B7%E6%94%BE%E5%A4%A7/td-p/709989
Show LessHello! I am trying to build an audio acquisition pcb using KiCAD and the IM73D122 microphone but the infineon product page doesnt have the design data specifically for KiCAD. Does anyone know where I can find it?
Show LessHi,
I would like to ask if anyone has tried connecting multiple kits of EVAL AHNB DIGITALV01 into a PC. The goal here is to connect 6 microphone kits so that I can have a single output fed into the pc and into Audacity. Is there any hardware/inteface you can recommend. thank you!
Show LessDear all:
We want to know if Infineon has reference design MEMS in smart lighting.
Replace Bosch SMI230, any recommendations?
Best Sides
Sam Zhang
smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/MEMS%E9%BA%A6%E5%85%8B%E9%A3%8E/MEMS-in-Smart-lighting/td-p/677138
Show LessHello, I would like to inquire about the IM73D122V01 microphone. The data sheet mentions that it has built-in built-in sigma-delta ADC, but there is no mention of how many bits of ADC it has. I want to know more
smartconx_target@Q!w2e3r4t5y6u7i8o9p0||/t5/MEMS%E9%BA%A6%E5%85%8B%E9%A3%8E/IM73D122V01%E6%95%B0%E5%AD%97%E9%BA%A6%E5%85%8B%E9%A3%8E%E7%9A%84ADC%E4%BD%8D%E6%95%B0/td-p/656606
Show LessI'm using this microphone for photoacoustic detection of gas absorption lines. I know this application is highly unorthodox and not really how the microphone is meant to be used but I still have a question regardless:
Basically the microphone catches the pressure sound wave of a gas that is heated by a laser, hitting one of the gases' absorption lines. The microphone definitely catches the created sound wave and the amplitude is displayed on our Lock In Amplifier.But if I don't change any parameter and wait for let's say 1 minute, the displayed amplitude suddenly sharply rises (from µV to mV!!) and then decreases again. This behaviour is also highly repeatable and deterministic! The amplitude-time plot is attached.
My question therefore is: Is there some kind of auto calibration going in inside the ASIC of the microphone, which adjusts the amplitude of the measured signal? Because for our application we would need the unaltered amplitude for correct plotting of the absorption line.
Thank you and with best regards,
chrollo
Show Less