STMicroelectronics AN4041 APWlink+ Microphone USB Demonstration Board Application Note

Introduces the APWlink+ microphone USB demonstration board from STMicroelectronics. It hosts the microcontroller STM32F107RC and either the MP45DT02 or MP34DT01 (top-port digital microphones) and the MP34DB01 (bottom-port digital microphone).

Brand: STMicroelectronics
Category: Other Electronics
Document type: Application Note
Language: English
Pages: 12
File format: PDF
File size: 1020 KB
Published: 06 August, 2012
Updated: 30 September, 2023
MD5 checksum: 23CA5CF5A9BAA7339C5189FFCE6011B4
PDF: STMicroelectronics AN4041 APWlink+ Microphone USB Demonstration Board Application Note PDF

About this manual

The APWlink+ is a demonstration board designed to host various STMicroelectronics digital microphones (MP45DT02, MP34DT01, or MP34DB01) and the STM32F107RC microcontroller. The board functions as a USB sound card, automatically recognized by the PC as an audio device to stream audio collected from the microphones.

What's inside

Introduction
Software description
Hardware description
Supply section
Microphone section
Microcontroller
LEDs status
Getting started
Revision history

Specifications

Microcontroller	STM32F107RC
Supported Microphones	MP45DT02, MP34DT01, MP34DB01
Output Frequency	48 kHz
Decimation Factor	64
Output Signal Format	16-bit PCM
USB Clock	12.288 MHz

Frequently asked questions

What microphones are supported by the APWlink+ board?

The board supports the MP45DT02, MP34DT01, and MP34DB01 digital microphones.

How is the board powered?

The board is powered via the USB cable, which supplies 5V that is stepped down to 3.3V and 2.5V by internal regulators.

How do I know if the firmware is correctly downloaded?

LED D2 will be on, and LED D3 will be off.

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