MAX9814 is a low-cost, high-quality microphone amplifier with automatic gain control (AGC) and low-noise microphone bias.
Specifications
Automatic Gain Control (AGC)
Three Gain Settings (40dB, 50dB, 60dB)
Programmable Attack Time
Programmable Attack and Release Ratio
2.7V to 5.5V Supply Voltage Range
Low Input-Referred Noise Density of 30nV/√Hz
Low THD: 0.04% (typ)
Low-Power Shutdown Mode
Internal Low-Noise Microphone Bias, 2V
Available in the Space-Saving, 14-Pin TDFN
-40°C to +85°C Extended Temperature Range
Applications
Digital Still Cameras
Digital Video Cameras
Bluetooth Headsets
Entertainment Systems (e.g., Karaoke)
Two-Way Communicators
High-Quality Portable Recorders
IP Phones/Telephone Conferencing