ADMP404
Omni-directional analog MEMS microphones for compact electronic devices
Manufacturer： ['invensense', 'analog-devices']
series introduction
# ADMP404 Product Series Introduction
## 1. Overview
The ADMP404 product series represents a cutting - edge line of microphones developed by Analog Devices. These microphones are designed to meet the diverse and demanding requirements of modern audio applications, offering high - performance audio capture capabilities in a compact and efficient package.
## 2. Key Features
### 2.1 High - Quality Audio Performance
- **Low Noise**: The ADMP404 microphones are engineered to have extremely low self - noise levels. This means that they can capture audio with minimal background hiss, resulting in clear and clean sound recordings. Whether it's for voice communication in a noisy environment or high - fidelity audio recording, the low noise characteristic ensures that the desired audio signal stands out.
- **Wide Frequency Response**: With a wide frequency response range, these microphones can accurately reproduce a broad spectrum of audio frequencies. From the deep bass tones to the high - pitched trebles, the ADMP404 can capture the full richness of the sound, making it suitable for a variety of audio applications such as music recording, voice recognition, and acoustic monitoring.
### 2.2 Small Form Factor
- **Compact Design**: The ADMP404 series comes in a very small and lightweight package. This makes it ideal for applications where space is at a premium, such as in mobile devices, wearables, and small - sized audio equipment. The compact design also allows for easy integration into existing product designs without significant modifications.
### 2.3 High Sensitivity
- **Accurate Audio Capture**: These microphones have high sensitivity, which means they can pick up even the faintest of sounds. This is particularly useful in applications like surveillance systems, where detecting quiet sounds from a distance is crucial. In voice - controlled devices, high sensitivity ensures that the microphone can accurately capture the user's voice commands, even when spoken softly.
### 2.4 Robustness and Reliability
- **Shock and Vibration Resistance**: The ADMP404 microphones are built to withstand shock and vibration. This makes them suitable for use in harsh environments, such as industrial settings or in portable devices that may be subject to rough handling. They can maintain their performance even under challenging conditions, ensuring long - term reliability.
- **Electromagnetic Compatibility (EMC)**: These microphones are designed to have good electromagnetic compatibility. They are less susceptible to electromagnetic interference (EMI) from other electronic components in the vicinity. This results in stable audio performance and reduces the likelihood of audio artifacts caused by EMI.
## 3. Applications
### 3.1 Mobile Devices
- **Smartphones and Tablets**: In smartphones and tablets, the ADMP404 microphones can be used for voice calls, voice recording, and voice - controlled features. Their small size allows for easy integration into the device's design, while their high - quality audio performance ensures clear and natural - sounding voice communication and accurate voice recognition.
- **Wearable Devices**: For wearables such as smartwatches and earbuds, the ADMP404's compact form factor and low power consumption make it an ideal choice. It can capture voice commands and audio for various applications, including fitness tracking, music playback control, and communication.
### 3.2 Audio Recording Equipment
- **Portable Recorders**: In portable audio recorders, the ADMP404's wide frequency response and low noise characteristics enable high - quality audio recording. Whether it's for field recording of nature sounds, interviews, or music performances, these microphones can capture the audio with excellent fidelity.
- **Studio Microphones**: Even in professional studio settings, the ADMP404 can be used as a secondary microphone or for specific recording applications. Its high sensitivity and accurate audio capture can contribute to the overall audio quality of
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