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STMicroelectronics STEVAL-STWINMAV1

Name: STEVAL-STWINMAV1
Brand: STMicroelectronics
SKU: STEVAL-STWINMAV1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STEVAL-STWINMAV1

Manufacturer:: STMicroelectronics

Category:: Expansion Boards, Daughter Cards

Package:

Datasheet:: STEVAL-STWINMAV1.pdf

Description:: ANALOG MICROPHONE ARRAY EXPANSIO

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,594

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Product details

Overview

STEVAL-STWINMAV1 from STMicroelectronics is an analog microphone array expansion board for the STEVAL-STWINKT1B SensorTile Wireless Industrial Node (STWIN) kit, enabling high-frequency vibration monitoring via four MP23ABS1 MEMS microphones and an on-board ADAU1978 quad ADC. It operates from 3 V to 5.5 V, integrates an LDK130 LDO, and connects via a dedicated 12-pin interface.

For engineers reviewing the STEVAL-STWINMAV1 datasheet, STEVAL-STWINMAV1 pinout, STEVAL-STWINMAV1 application, or STEVAL-STWINMAV1 equivalent, this board delivers calibrated analog audio sensing with SAI digital output, low-noise power regulation, and firmware-ready integration into STWIN-based industrial IoT edge nodes.

Technical Context

The board implements a 4-channel analog microphone front-end using MP23ABS1 bottom-port MEMS devices (63 dB SNR, 100 Hz–10 kHz bandwidth), each biased and conditioned for differential signal integrity. The ADAU1978 audio ADC provides 24-bit resolution, programmable gain, and SAI-compatible serial output synchronized to MCLK, LRCLK, and BCLK.

Power delivery is managed by the LDK130M-R LDO (300 mA output, 35 µA quiescent current, 12 µV_RMS noise), optimized for battery-powered industrial sensor nodes. All analog supply domains (A3V, D3V3) are decoupled with discrete ceramic capacitors per layout-critical placement guidelines in the schematic.

Key Specifications

Parameter	Value and Actual Design Meaning
Microphone Count	4× MP23ABS1 single-ended analog MEMS microphones, arranged in 4 mm square array for spatial coherence
ADC Resolution & Type	24-bit sigma-delta quad ADC (ADAU1978), supporting simultaneous sampling and SAI output
Supply Voltage Range	3.0 V to 5.5 V input; regulated A3V (analog) and D3V3 (digital) rails generated on-board
LDO Performance	LDK130M-R: 300 mA output, 35 µA IQ, 12 µV_RMS output noise - enables >10-year battery life in intermittent-sensing deployments
Digital Interface	SAI (Serial Audio Interface): supports I²S, left-justified, and DSP modes; pins include SAI_MCLK, SAI_FS, SAI_SCK, SAI_SD
Physical Interface	12-pin male connector (M55-7001242R) with defined pin mapping for power, SAI, I²C, and ground

Availability

STEVAL-STWINMAV1 is available at Aetrix Electronics and suitable for factory automation, predictive maintenance, ultrasonic condition monitoring, and industrial IoT edge node development requiring stable component supply and validated sensor fusion hardware.

Supply support for STEVAL-STWINMAV1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, sensors, power ICs, and analog/mixed-signal products for industrial, automotive, and IoT applications.

This board belongs to ST's STWIN (SensorTile Wireless Industrial Node) reference design ecosystem, engineered specifically to accelerate development of battery-operated, wireless industrial condition monitoring systems with multi-sensor fusion and edge AI readiness.

FAQ

Is STEVAL-STWINMAV1 compatible with STEVAL-STWINKT1 (non-B version)?

Yes - the board is explicitly designed for both STEVAL-STWINKT1 and STEVAL-STWINKT1B core boards. Pin compatibility and firmware support (STSW-STWINKT01) are maintained across both versions, including identical 12-pin connector mapping and SAI/I²C signal routing.

What firmware and software support is provided?

ST provides STSW-STWINKT01 firmware with BSP drivers and application examples targeting ultrasound-range vibration analysis. The code includes microphone calibration routines, FFT-based spectral processing, and SAI data streaming to the host MCU over the 12-pin interface.

Does the board require external clocking for the ADAU1978 ADC?

No - the ADAU1978 uses the system MCLK supplied from the STWIN core board (e.g., STM32WB55). The board routes MCLK, LRCLK, and BCLK directly from CN1; no crystal or oscillator is mounted on STEVAL-STWINMAV1 itself.

Can the microphones be used independently or only as a synchronized array?

All four MP23ABS1 microphones share common bias and analog conditioning paths but feed independent ADC channels. Firmware-level control allows individual channel enable/disable, gain adjustment, and post-processing - enabling both synchronized acquisition and selective mono-channel use cases.

STEVAL-STWINMAV1 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

Series:: -

Packaging:: Bulk

Product Status:: Active

Platform:: SensorTile

Type:: Audio

Function:: Microphone

Utilized IC / Part:: MP23ABS1

Contents:: Board(s)

STEVAL-STWINMAV1 FAQ

1.How can I place an order for STEVAL-STWINMAV1 through Aetrix?

Please submit a Request for Quotation (RFQ) for STEVAL-STWINMAV1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for STEVAL-STWINMAV1 reliable?

The price and inventory of STEVAL-STWINMAV1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-STWINMAV1 is usually 5 days.

3.What payment methods are accepted for STEVAL-STWINMAV1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-STWINMAV1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STEVAL-STWINMAV1?

STEVAL-STWINMAV1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STEVAL-STWINMAV1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for STEVAL-STWINMAV1?

For technical support, including STEVAL-STWINMAV1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-STWINMAV1 requirements.

6.How does Aetrix verify that STEVAL-STWINMAV1 is sourced from the original manufacturer or authorized distributors?

All STEVAL-STWINMAV1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STEVAL-STWINMAV1 meets industry standards.

7.What is the process for return or replacement of STEVAL-STWINMAV1?

All STEVAL-STWINMAV1 units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-STWINMAV1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The STEVAL-STWINMAV1 part is unused and in its original packaging.

Return procedure for STEVAL-STWINMAV1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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