infineon / getstarted_im69d130_with_raspberrypi Goto Github PK

We need help to implement I2S on ESP32-WROOM 32D. We can't access Infineon IM69D130 even after register Infineon new account. It requires Infineon Application Engineer to approve and grant the software download. Even so can we use Infineon IM69D130 on ESP32-WROOM 32D? We are in early manufacturing design. Please help

ESP32-WROOM 32D
https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf

Infineon IM69D130
https://www.infineon.com/cms/en/product/evaluation-boards/s2go-memsmic-im69d/

The IM69D is a I2S (Inter-IC-Sound) device and does not need a special library. It works out-of-the-box with the XMC microcontroller series. The ESP32 is not yet natively supported.

Hi,
I connected the s2go MEMS to a Raspberry Pi and overall I‘m impressed by the quality so far. Great product!
However, when recording with a sample rate of 48 kHz and a bitrate of 16 bits, Frequencies above 12 kHz are just mirrored and the second channel has some short noisy interrupts, which I assume is caused by a misinterpretation of the received signal. I‘ve seen the same behavior with other MEMS microphones so could you tell me if this is inherent to the MEMS type microphones or is this related to the i2s software currently available for these microphones?

The only way I was able to record "real" 48 kHz with no issues on the second channel was with 32 bits.

Thank you!

We need help to implement I2S on ESP32-WROOM 32D. We can't access Infineon IM69D130 even after register Infineon new account. It requires Infineon Application Engineer to approve and grant the software download. Even so can we use Infineon IM69D130 on ESP32-WROOM 32D? We are in early manufacturing design. Please help

ESP32-WROOM 32D
https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_en.pdf

Infineon IM69D130
https://www.infineon.com/cms/en/product/evaluation-boards/s2go-memsmic-im69d/

The IM69D is a I2S (Inter-IC-Sound) device and does not need a special library. It works out-of-the-box with the XMC microcontroller series. The ESP32 is not yet natively supported.

I was wondering if the same guide applies for PDM, as well as running on an RPI 4?