ICS-43434

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MICROPHONE MEMS DIGITAL I2S OMNI

  • FabricanteTDK InvenSense

  • Peça do Fabricante #ICS-43434

  • Em Estoque4388

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Especificações

Atributo Valor
Series ICS-43434
Part Status Last Time Buy
Type MEMS (Silicon)
Output Type Digital, I2S
Direction Omnidirectional
Frequency Range 60 Hz ~ 20 kHz
Sensitivity -26 ±1dB @ 94dB SPL
S/N Ratio 64dB
Voltage Range 1.65 V ~ 3.63 V
Current - Supply 550 µA
Port Location Bottom
Termination Solder Pads
Size / Dimension 0.138" L x 0.104" W (3.50mm x 2.65mm)
Height (Max) 0.039" (0.98mm)
Shape Rectangular
Packaging Cut Tape (CT), Tape & Reel (TR)

Visão Geral

Description

The ICS-43434 is a digital MEMS (Micro-Electro-Mechanical Systems) microphone designed for high-performance audio applications. It features an I²S (Inter-IC Sound) interface, allowing it to directly output digital audio data, which simplifies the integration process in systems by eliminating the need for analog-to-digital conversion. This microphone is known for its low power consumption, making it suitable for battery-operated devices. It has a high signal-to-noise ratio (SNR), ensuring clear and crisp audio capture, and a wide frequency response range, which makes it versatile for various audio applications, from voice recognition to environmental monitoring.
The ICS-43434 is compact, facilitating easy incorporation into space-constrained designs, such as smartphones, smart speakers, and other portable electronic devices. Its omnidirectional pickup pattern allows it to capture sound from all directions, ensuring comprehensive audio coverage. This microphone operates efficiently in a broad temperature range, enhancing its reliability across diverse environments. Overall, the ICS-43434 is a robust solution for developers seeking efficient, high-quality digital audio input capabilities in their electronic projects.

Equivalent

The ICS-43434 is a MEMS microphone with an I2S interface. Equivalent products include:
1. InvenSense INMP441: Another MEMS microphone with an I2S interface.
2. Knowles SPH0645LM4H: Digital microphone with a similar interface.
3. CUI Devices CMM-4030D-261-I2S-TR: MEMS microphone with I2S output.
4. Adafruit's I2S MEMS Microphone Breakout: Using SPH0645 microphone.
These alternatives share similar functionalities and digital interfaces suitable for audio input applications.

Features

The ICS-43434 is a digital microphone with the following key features:
1. Digital Output: It provides a Pulse Density Modulation (PDM) output, which allows for direct connection to digital processors without the need for an analog-to-digital converter.
2. High Sensitivity: The microphone features high sensitivity and a wide dynamic range, making it suitable for capturing low-level audio signals accurately.
3. Low Power Consumption: Designed for battery-powered devices, it offers low power consumption, making it ideal for portable applications.
4. Compact Size: With a small footprint, the ICS-43434 is suitable for use in space-constrained applications like smartphones, tablets, and other handheld devices.
5. Wide Frequency Response: It covers a wide frequency range, ensuring high-quality audio capture across various applications.
6. Omnidirectional Pattern: The microphone has an omnidirectional pickup pattern, capturing sound from all directions for a comprehensive audio representation.
7. High Signal-to-Noise Ratio (SNR): The ICS-43434 delivers a high SNR, which improves audio clarity by minimizing unwanted noise.
These features make the ICS-43434 suitable for various consumer electronics and audio applications.

Pinout

The ICS-43434 is a digital MEMS microphone with the following pin count and functions:
1. VDD (Power Supply): Supplies the power to the microphone. It typically operates at a voltage range of 1.6V to 3.6V.
2. GND (Ground): The ground pin, used to complete the electrical circuit for power and signal return.
3. SD (Serial Data Output): This pin outputs the digital audio data. The ICS-43434 uses Pulse Density Modulation (PDM) to convert the analog signal into a digital signal.
4. WS (Word Select): Also known as the clock input, this pin is used to synchronize the data communication between the microphone and the host processor. It helps delineate the individual audio data bits.
The ICS-43434 is designed to interface with digital processing systems, making it suitable for applications requiring compact size and low power consumption, such as smartphones, tablets, and other portable audio devices.

Manufacturer

The ICS-43434 is manufactured by InvenSense, a company that specializes in designing and producing micro-electromechanical systems (MEMS) sensors. InvenSense is known for its development of motion-tracking devices used in consumer electronics, automotive, industrial, and other applications. The ICS-43434 is a digital MEMS microphone, which highlights InvenSense's focus on creating advanced sensor technologies for a variety of industries. InvenSense is part of TDK Corporation, a larger multinational electronics company headquartered in Japan. TDK acquired InvenSense in 2017, thereby expanding its portfolio in sensor technologies and strengthening its position in the sensor market.

Application

The ICS-43434 is a high-performance, low-power, digital MEMS microphone with an I2S output, commonly used in various applications. Its primary uses include consumer electronics like smartphones, tablets, and laptops for voice recognition, recording, and telecommunication. It is also employed in smart home devices such as voice-controlled assistants and IoT devices, where clear audio capture is essential. Additionally, the ICS-43434 finds applications in hearing aids and wearable technology, providing accurate sound capture in compact form factors. Its low power consumption and digital output make it ideal for battery-operated devices requiring efficient audio processing.

Package

The ICS-43434 is a micro-electro-mechanical systems (MEMS) microphone in a compact package. It typically comes in a small surface-mount package designed for easy integration into electronic devices. The package type is commonly a bottom-port configuration, which allows sound to enter from the bottom side, making it suitable for mobile applications and space-constrained designs.

Frequently Asked Questions


Q: What is the output interface of the ICS-43434?
A: It features a digital I²S interface, allowing direct connection to digital processors without an external ADC.


Q: What is the sensitivity specification of this microphone?
A: The sensitivity is -26 dB ±1 dB at 94 dB SPL (1 kHz), ensuring high consistency across units.


Q: What is the typical signal-to-noise ratio?
A: The S/N ratio is 64 dB, making it suitable for clear audio capture in voice and IoT applications.


Q: What is the operating voltage range?
A: It operates from 1.65 V to 3.63 V, with a low supply current of 550 µA, ideal for battery-powered devices.


Q: What is the frequency response range?
A: The frequency range is 60 Hz to 20 kHz, covering the full audible spectrum for high-fidelity recording.


Q: What is the package size of this MEMS microphone?
A: It comes in a compact rectangular package measuring 3.50mm x 2.65mm with a maximum height of 0.98mm.


Q: Where is the port location on this component?
A: The sound port is located on the bottom of the package, designed for reflow soldering onto a PCB.


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