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UM3204
User manual
STEVAL-MIC008A adapter board with two MP23DB01HP MEMS microphones
Introduction
The
STEVAL-MIC008A
is an adapter board where two
MP23DB01HP
digital MEMS microphones are mounted.
The two microphones, mounted with a distance of 30mm, allow to perform some beam forming algorithms able to maximize gain
in some direction.
STEVAL-MIC008A
can be mounted on different boards of the STM32H7 discovery kit (for example STM32H735G-DK,
STM32H7B3I-DK, STM32H747I-DISCO).
Figure 1.
STEVAL-MIC008A
UM3204 - Rev 1 - July 2023
www.st.com
For further information contact your local STMicroelectronics sales office.
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Summary of Contents for ST STEVAL-MIC008A
- Page 1 UM3204 User manual STEVAL-MIC008A adapter board with two MP23DB01HP MEMS microphones Introduction STEVAL-MIC008A is an adapter board where two MP23DB01HP digital MEMS microphones are mounted. The two microphones, mounted with a distance of 30mm, allow to perform some beam forming algorithms able to maximize gain in some direction.
- Page 2 Two different operation mode (low power and performance mode) – Sensitivity -41 dBFs ±1 dB • Power supply coming from STM32H7 board via CN1 connector of STEVAL-MIC008A Precautions for use During the radiated emissions test according with EN 55032, the STEVAL-MIC008A board is compliance with EMC standards for radiated emissions in class A (industrial environment intended use).
- Page 3 UM3204 How to use How to use Connect STEVAL-MIC008A using connector CN1 with STM32H7xxx discovery kit. If correctly mounted, the LED LD1 mounted on the bottom of the board, switches on. Some examples: Figure 2. Connection with STM32H7B3I-DK Figure 3.
- Page 4 Schematic diagram Figure 4. STEVAL-MIC008A circuit schematic CONNECTORS DETECTn 3V3_MIC_1 CLK_0 DATA_0 VCC_LED VCC_LED DATIN7 DATIN3 CLK_0 DATIN2 DATIN1 DETECTn DATIN3 VCC_LED 3V3_MIC_1 CARD DETECT 100R DETECTn 3V3_MIC_1 DETECTn : PC12 UART5_TX 3V3_MIC_1 20021221-00020T4LF VCC_L ED : PD2 UART5_RX Fitted: NO...
- Page 5 UM3204 Bill of materials Bill of materials Table 1. STEVAL-MIC008A bill of materials Item Q.ty Ref. Part/value Description Manufacturer Order code C1, C7 1uF, 0402, 25 V CAPACITOR Murata GRM155R61E105KA12D 100nF, 0402, 25 C2, C4 CAPACITOR Multicomp MC0402B104K250CT Header, 10x2, 1.27mm, VR,...
- Page 6 UM3204 Board versions Board versions Table 2. STEVAL-MIC008A versions Finished good Schematic diagrams Bill of materials STEVAL$MIC008AA STEVAL$MIC008AA schematic diagrams STEVAL$MIC008AA bill of materials 1. This code identifies the STEVAL-MIC008A evaluation board first version. UM3204 - Rev 1 page 6/12...
- Page 7 UM3204 Regulatory compliance Regulatory compliance Notice for US Federal Communication Commission (FCC) For evaluation only; not FCC approved for resale FCC NOTICE - This kit is designed to allow: (1) Product developers to evaluate electronic components, circuitry, or software associated with the kit to determinewhether to incorporate such items in a finished product and (2) Software developers to write software applications for use with the end product.
- Page 8 UM3204 Revision history Table 3. Document revision history Date Revision Changes 07-Jul-2023 Initial release. UM3204 - Rev 1 page 8/12...
- Page 9 UM3204 Contents Contents Getting started ..............2 Features .
- Page 10 STEVAL-MIC008A bill of materials ........
- Page 11 STEVAL-MIC008A circuit schematic ........
- Page 12 ST’s terms and conditions of sale in place at the time of order acknowledgment. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of purchasers’...
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