X-NUCLEO-AMICAM1

X-NUCLEO-AMICAM1 Data brief Analog MEMS microphone expansion board based on MP23ABS1 for STM32 Nucleo Features 3 on-board MP23ABS1 analog MEMS microphones 5 slots to plug analog microphone coupon boards (e.g., STEVAL-MIC004V1) Synchronized acquisition and streaming of up to 4 microphones Amplification stage based on TSV91x wide bandwidth operational amplifiers On-board external ADC Direct acquisition of a single microphone exploiting STM32 embedded ADC Up to 192 KHz sampling frequency Free comprehensive development firmware library and audio capture plus USB streaming sample application compatible with STM32Cube Compatible with STM32 Nucleo boards Equipped with ST morpho connectors (top and bottom) and Arduino UNO R3 connectors (top) to allow stacking of multiple boards RoHS and WEEE compliant Description The X-NUCLEO-AMICAM1 expansion board allows synchronized acquisition and streaming of up to 4 microphones at a maximum sampling rate of 192 KHz. It represents a quick and easy solution to develop microphone-based applications and start implementing audio algorithms. The expansion board is designed around the MP23ABS1 analog MEMS microphone Product summary and is compatible with the ST morpho connector layout and with analog microphone coupon boards (e.g., STEVAL-MIC004V1). Analog MEMS microphone expansion The X-NUCLEO-AMICAM1 embeds three MP23ABS1 microphones: two connected X-NUCLEO- board based on to an external ADC and one directly routed to the STM32 embedded ADC. AMICAM1 MP23ABS1 for STM32 The analog amplification stage is achieved thanks to ST TSV91x wide bandwidth Nucleo operational amplifiers. Microphone coupon board based on STEVAL- MP23ABS1 analog MIC004V1 MEMS microphone High performance MEMS audio sensor single MP23ABS1 ended analog bottom- port microphone Application Sensing DB4065 - Rev 1 - December 2019 www.st.com For further information contact your local STMicroelectronics sales office.X-NUCLEO-AMICAM1 Schematic diagrams DB4065 - Rev 1 page 2/7 1 Schematic diagrams Figure 1. X-NUCLEO-AMICAM1 circuit schematic - connectors A2V5 SB7 NC J2 SB12 0R SPI CS 2 SB11 NC I2S MCLK SB8 NC SB13 0R 1 NRST SPI MOSI SB14 0R SPI MISO SB1 0R SB15 0R I2S SD2 SPI SCK CN7 CN5 CN10 E5V SB2 0R 1 2 1 2 I2S CK NC 3 4 10 3 4 SB3 0R SB18 I2S SD1 I2S MCLK 5VV IN 3V3 5 6 9 5 6 CN6 7 8 8 7 8 9 10 1 7 9 10 SPI1 SCK SB19 11 12 2 6 11 12 0R OTG FS DP NUCLEO 13 14 3 5 SPI1 MISO 13 14 0R SB20 OTG FS DM NUCLEO 15 16 4 4 SPI1 MOSI 15 16 0R SB4 17 18 5 3 SPI1 CS 17 18 I2S WS 19 20 6 2 19 20 21 22 7 1 21 22 23 24 8 23 24 25 26 25 26 SB21 NC I2S SD2 27 28 27 28 29 30 8 29 30 SB22 NC I2S CK 31 32 1 7 31 32 33 34 2 6 33 34 35 36 3 5 35 36 37 38 4 4 37 38 5 3 6 2 HEADER 19x2 1 HEADER 19x2 SB16 CN8 CN9 SB6 I2S CK NC M5+ 0R