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MP45DT02TR
+BOMMIC MEMS DIGITAL PDM OMNI -26DB
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ManufacturerSTMicroelectronics
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Mfr. Part #MP45DT02TR
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Datasheet MP45DT02TR DataSheet
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In Stock11302
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Specifications
| Attribute | Value |
| Part Status | Obsolete |
| Type | MEMS (Silicon) |
| Output Type | Digital, PDM |
| Direction | Omnidirectional |
| Frequency Range | 100 Hz ~ 10 kHz |
| Sensitivity | -26dB ±3dB @ 94dB SPL |
| S / N Ratio | 61dB |
| Voltage - Rated | 1.8 V |
| Voltage Range | 1.64 V ~ 3.6 V |
| Supply Current | 650 µA |
| Port Location | Top |
| Termination | Solder Pads |
| Size / Dimension | 0.186" L x 0.148" W (4.72mm x 3.76mm) |
| Height (Max) | 0.054" (1.38mm) |
| Shape | Rectangular |
| Base Product Number | MP45 |
Overview
Description
Key features include:
- High Signal-to-Noise Ratio (SNR): Ensures clear audio capture.
- Low Power Consumption: Suitable for battery-operated devices.
- Omni-directional Sensitivity: Captures sound from all directions, which is beneficial in various environmental settings.
- Digital Output: Simplifies integration with digital systems by eliminating the need for an analog-to-digital converter.
- Small Footprint: The compact size allows for easy integration into space-constrained designs.
The MP45DT02TR is an attractive choice for developers looking to incorporate reliable audio input capabilities into modern consumer electronics without compromising on device size or power efficiency.
Equivalent
1. ICS-43434 by InvenSense
2. ADMP421 by Analog Devices
3. SPH0645LM4H by Knowles
These microphones offer similar performance in terms of digital interface, package size, and application flexibility. Always check detailed specifications to ensure compatibility with your specific requirements.
Features
1. Digital Output: Provides Pulse Density Modulated (PDM) output, allowing easy integration with digital signal processors (DSPs) and microcontrollers.
2. Omnidirectional Pattern: Captures sound equally from all directions, making it versatile for a variety of applications.
3. High Signal-to-Noise Ratio (SNR): Typically around 61 dB, ensuring clear audio capture.
4. Low Power Consumption: Ideal for battery-operated devices.
5. Wide Frequency Response: Ranges from 100 Hz to 10 kHz, suitable for voice capture and general audio applications.
6. Compact Package: Comes in a small 3.35 x 2.5 x 0.98 mm package, facilitating space-saving designs.
7. Robust Construction: Designed to withstand harsh environmental conditions, making it suitable for portable devices.
These features make the MP45DT02TR suitable for smartphones, tablets, and other consumer electronic devices where clear audio capture and low power use are critical.
Pinout
1. VDD: This pin provides the supply voltage necessary for the microphone's operation.
2. GND: The ground pin, which serves as the reference point for the electrical circuit, completing the electrical loop.
3. CLK: This clock input pin is used for synchronizing data transfer. It helps coordinate the timing of the microphone's digital output.
4. DAT: The data output pin transmits the digital audio signal captured by the microphone.
These pins enable the MP45DT02TR to function as a MEMS (Micro-Electro-Mechanical Systems) digital microphone, converting acoustic signals into digital data for processing in various audio applications.