MAX9814 AGC Microphone Amplifier Module CMA-4544PF-W

Automatic gain control (AGC)
3 gain Settings (40dB, 50dB, 60dB)
Programmable action time
Programmable action and release time ratio
2.7V to 5.5V power voltage range
Low input noise density 30nV/
Low THD: 0.04% (typical value)
Low power off mode
Built-in 2V low noise microphone bias
Provides a space-saving 14 pin TDFN (3mm x 3mm) package
Temperature range from -40°C to +85°C expansion stage