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    MAX9814 Microphone Amplifier Module Robotics Bangladesh
    • MAX9814 Microphone Amplifier Module Robotics Bangladesh

    MAX9814 Microphone Amplifier Module

    RBD-2758

    • MAX9814 microphone amplifier module with automatic gain control (AGC)
    • Compatible with Arduino and other microcontrollers via analog pin
    • Wide frequency response: 20Hz – 20kHz for accurate sound measurement
    • Adjustable maximum gain: 40dB, 50dB, or 60dB via gain pin
    • Adjustable attack/release ratio for flexible sound response control
    • Compact PCB size: 25.4 × 14.1mm with mounting holes
    BDT 380
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    18 Items

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    Description

    The MAX9814 Microphone Amplifier Module is a compact and efficient sound detection module designed for Arduino and other microcontrollers. Featuring automatic gain control (AGC), it amplifies low-volume sounds more while limiting high-volume signals, ensuring consistent and accurate audio measurements. With an operating voltage range of 2.4V–5.5V and an output centered around 1.25V, it provides analog signals that can be directly read by an ADC pin. The module allows adjustment of maximum gain (40/50/60dB) and attack/release ratios, making it versatile for different audio applications such as voice recognition, sound level detection, and audio-based projects. Featured By RoboticsBD.

    Product Images are shown for illustrative purposes only and may differ from the actual product.

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    Features:

    1. MAX9814 microphone amplifier with built-in AGC.

    2. Adjustable gain settings: 40dB, 50dB, or 60dB.

    3. Adjustable attack/release ratio: 1:4000, 1:2000, or 1:500.

    4. Frequency response from 20Hz to 20kHz.

    5. Analog output voltage range: ~0–2.45V (centered at ~1.25V).

    6. Operates on 2.4–5.5V DC supply voltage.

    7. Compact 25.4 × 14.1mm PCB with two mounting holes.

    8. Compatible with Arduino, STM32, ESP32, and other MCUs.

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    Applications:

    1. Voice recognition projects.

    2. Sound level monitoring and audio analysis.

    3. DIY smart assistants and sound-activated systems.

    4. Audio input for robotics projects.

    5. Educational electronics and STEM learning.

    6. Acoustic detection and environmental monitoring.

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    General Specifications
    SpecificationDetails
    Operating Voltage2.4V – 5.5V DC
    Output Voltage~0–2.45V (average 1.25V)
    Frequency Response20Hz – 20kHz
    Maximum Gain40dB / 50dB / 60dB (selectable)
    Attack/Release Ratio1:4000 / 1:2000 / 1:500 (selectable)
    PCB Dimensions25.4 × 14.1 mm
    Mounting Holes2 × 2mm
    PinoutVdd, GND, Gain, Out, AR
    Shipment Weight0.0032 kg
    Shipment Dimensions3 × 2 × 2 cm

    Please allow 5% measuring deviation due to manual measurement.

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    Package Includes:

    1 x MAX9814 Microphone Amplifier Module

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    Product Details
    RBD-2758
    18 Items

    Specific References

    EAN13
    2758
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    BDT 1,150 tax excl.
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    BDT 1,150 tax incl.
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    Reference: RBD-0291

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    (0)
    Main chip: LM393, Electret condenser microphone Working voltage: DC 3.3-5V Induction distance is 0.5M Signal output Indication Single channel signal output The output effective signal is low level.
    BDT 73
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    Reference: RBD-0344

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    (0)
    Output Sensitivity: 1.0 ± 0.1 mV / V. Two selectable differential input channels. On-chip active low noise PGA with the selectable gain of 32, 64 and 128. On-chip oscillator requiring no external component with optional external crystal. On-chip power-on-reset. Measurement Resolution: 24 bit. RoboticsBD
    BDT 130
    BDT 130 tax incl.
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    BDT 130 tax excl.
    BDT 130 tax incl.
    BDT 130 tax incl.
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    BDT 130 tax excl.
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    More Weighing Sensor 24 Bit Load Cell Amplifier HX711
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