ICS-43432

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ICS-43432

+物料清單

MIC MEMS DIGITAL I2S OMNI -26DB

  • 製造商TDK InvenSense

  • 製造商部分 #ICS-43432

  • 有存貨25853

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規格

屬性 價值
Part Status Last Time Buy
Type MEMS (Silicon)
Output Type Digital, I2S
Direction Omnidirectional
Frequency Range 50 Hz ~ 20 kHz
Sensitivity -26dB ±1dB @ 94dB SPL
S/N Ratio 65dB
Voltage Range 1.62 V ~ 3.63 V
Current - Supply 1.5 mA
Port Location Bottom
Termination Solder Pads
Size / Dimension 0.157" L x 0.118" W (4.00mm x 3.00mm)
Height (Max) 0.043" (1.10mm)
Shape Rectangular
Packaging Cut Tape (CT), Tape & Reel (TR)

概述

Description

The ICS-43432 is a high-performance, digital MEMS (Micro-Electro-Mechanical Systems) microphone designed for applications requiring excellent audio quality. It features a Pulse Density Modulation (PDM) output, which is suitable for interfacing with microcontrollers and digital signal processors. The microphone is known for its low power consumption, small package size, and high signal-to-noise ratio (SNR), making it ideal for compact, battery-operated devices like smartphones, tablets, and IoT devices.
The ICS-43432 offers omnidirectional sensitivity, allowing it to capture sound from all directions with consistent frequency response. It operates over a wide frequency range, providing clear and accurate audio capture. The microphone is also designed to be robust and reliable, withstanding environmental challenges such as humidity and temperature variations.
Its integration capabilities, combined with the digital output, make the ICS-43432 suitable for applications that require precise audio input and processing, such as voice recognition systems, acoustic event detection, and audio recording devices. Its minimal external components and ease of integration further enhance its appeal in modern electronic designs.

Equivalent

The ICS-43432 is a digital MEMS microphone. Equivalent products include the following:
1. ADMP441 - by Analog Devices, which is a digital MEMS microphone with similar specifications.
2. SPH0645LM4H - by Knowles, known for its acoustic performance and digital I2S interface.
3. INMP441 - another product from Analog Devices, offering a digital output and similar functionality.
These alternatives provide comparable features like size, sensitivity, and digital output capability.

Features

The ICS-43432 is a digital MEMS (Micro-Electro-Mechanical Systems) microphone designed for high-performance audio capture. Key features include:
1. Digital Output: Utilizes an I²S (Inter-IC Sound) interface for direct digital audio output, eliminating the need for additional analog-to-digital conversion.
2. Low Power Consumption: Designed to be power-efficient, making it suitable for battery-operated devices.
3. High Signal-to-Noise Ratio (SNR): Offers a high SNR, typically around 65 dB, enabling clear and precise audio capture even in noisy environments.
4. Wide Frequency Response: Provides a frequency response range from approximately 60 Hz to 20 kHz, suitable for capturing a broad spectrum of sounds.
5. Omnidirectional Pickup Pattern: Capable of capturing sound from all directions, ideal for a variety of applications.
6. Compact Size: Small footprint makes it suitable for integration into compact electronic devices.
7. Low Distortion: Ensures minimal audio distortion, maintaining the integrity of the recorded sound.
These features make the ICS-43432 suitable for use in consumer electronics, voice-controlled applications, and other audio-related technologies.

Pinout

The ICS-43432 is a digital MEMS microphone with a small footprint and specific pin configuration. It typically comes in a 4-pin package with the following pin assignments and functions:
1. VDD (Pin 1): This pin provides the power supply to the microphone, typically around 1.8V to 3.3V.
2. GND (Pin 2): The ground pin is used to complete the electrical circuit and is connected to the system ground.
3. WS (Word Select, Pin 3): This pin acts as the word select or left/right clock for I²S data format. It determines the channel (left or right) for the digital audio data.
4. SCK (Serial Clock, Pin 4): The serial clock input for the I²S interface, which synchronizes the data transfer.
The ICS-43432 is designed for applications requiring high-performance audio capture, including consumer electronics and IoT devices. Its integration of a MEMS sensor and an I²S interface simplifies the design process by enabling direct connection to digital audio processors without the need for an external ADC.

Manufacturer

The ICS-43432 is manufactured by InvenSense, a subsidiary of TDK Corporation. InvenSense specializes in micro-electromechanical systems (MEMS) technology, primarily known for its motion sensors. The company has expertise in developing MEMS microphones, gyroscopes, accelerometers, and other sensor products used in various applications, including consumer electronics, industrial, automotive, and IoT (Internet of Things) devices. InvenSense, under TDK, continues to innovate in the field of sensor technology, integrating their products into smartphones, wearables, and other smart devices. TDK Corporation, the parent company, is a multinational electronics company headquartered in Japan, known for manufacturing electronic materials, components, and systems.

Application

The ICS-43432 is a high-performance, low-power digital MEMS microphone commonly used in various applications. Its primary application areas include consumer electronics like smartphones, tablets, and laptops, where it facilitates voice recognition and noise cancellation. It's also used in smart home devices such as voice-controlled assistants and IoT devices for picking up clear audio commands. In automotive systems, it enables hands-free communication and in-cabin noise monitoring. Additionally, it's utilized in wearable technology for health monitoring and fitness tracking, where accurate voice input and ambient sound detection are crucial. Its digital output and compact size make it suitable for any application requiring high-fidelity audio capture.

Package

The ICS-43432 is a MEMS microphone with an I2S digital output. It typically comes in a surface-mount package, specifically a small, 4 mm x 3 mm x 1 mm LGA (Land Grid Array) package, designed for easy integration into various electronic devices, such as smartphones, tablets, and other consumer electronics.

Frequently Asked Questions


Q: What is the output interface of the ICS-43432?
A: It features a digital I²S output, enabling direct connection to digital processors without an external ADC.


Q: What is the supply voltage range for this MEMS microphone?
A: The operating voltage range is 1.62 V to 3.63 V, making it suitable for low-power portable devices.


Q: What is the sensitivity and typical application scenario?
A: Sensitivity is -26dB ±1dB at 94dB SPL, ideal for far-field voice capture in smart speakers and IoT devices.


Q: What is the signal-to-noise ratio (SNR)?
A: It offers a high SNR of 65dB, ensuring clear audio quality in noisy environments.


Q: What is the frequency response range?
A: The frequency range covers 50 Hz to 20 kHz, suitable for full-bandwidth audio recording.


Q: Does this component support reflow soldering?
A: Yes, it has solder pad termination and is compatible with standard SMD reflow soldering processes.


Q: What is the current consumption?
A: The supply current is only 1.5 mA, which benefits battery-powered applications like wearables.


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