Description

The MAX9814 Electret Microphone Amplifier is a high-performance module equipped with Auto Gain Control (AGC) for optimised audio recording. With its advanced features, such as programmable gain settings, low distortion, and a wide operating voltage range, this amplifier is perfect for a variety of audio and communication applications. Its compact design and robust functionality make it a reliable choice for professional-grade sound systems and portable devices.

Why Choose the MAX9814?

Designed for versatility and precision, the MAX9814 offers excellent sound quality with minimal noise. Its AGC ensures consistent audio levels, even in dynamic environments, while its low power consumption makes it suitable for portable and battery-powered devices. Whether you're working on a digital camera, a teleconference system, or a high-quality audio recorder, the MAX9814 delivers outstanding results.

Key Features

Automatic Gain Control (AGC): Maintains consistent audio levels for optimal sound quality.
Three Gain Settings: Adjustable gain levels of 40dB, 50dB, and 60dB to suit various applications.
Low Distortion: Total Harmonic Distortion (THD) as low as 0.04% (typical value).
Programmable Options: Customisable startup time and release ratio for flexible configurations.
Wide Voltage Range: Operates on a 2.7V to 5.5V power supply.
Low Noise: Input reference noise density of up to 30nV/Hz.
Compact Design: Space-saving 14-pin TDFN package (3mm x 3mm).
Temperature Range: Operates reliably in extreme conditions from -40°C to +85°C.

Technical Specifications

Power Supply Voltage: 2.7V to 5.5V
Gain Settings: 40dB, 50dB, 60dB
THD: 0.04% (typical value)
Input Noise Density: 30nV/Hz
Operating Temperature Range: -40°C to +85°C
Package: 14-pin TDFN (3mm x 3mm)
Microphone Bias Voltage: Internal 2V

Applications

Digital Cameras: High-quality audio recording for professional video content.
PDA and Bluetooth Headsets: Enhanced audio clarity for communication devices.
Entertainment Systems: Ideal for karaoke and other interactive systems.
Bidirectional Communication: Suitable for intercoms and conferencing equipment.
IP Telephony: Delivers clear audio for teleconference and VoIP applications.
Portable Video Recorders: Ensures premium sound capture in compact devices.

The MAX9814 Electret Microphone Amplifier with Auto Gain Control (AGC) is the perfect solution for applications requiring reliable, high-quality audio amplification. Its advanced features and compact design make it an indispensable component for modern audio and communication systems.