MAX9814 is a low-cost high-performance microphone amplifier with automatic gain control (AGC) and low noise microphone bias.
The device features a low-noise front-end amplifier, variable gain amplifier (VGA), output amplifier, microphone bias voltage generator, and AGC control circuit.
● Automatic Gain Control (AGC)●Three gain settings (40dB, 50dB, 60dB)
● Programmable action time
● Programmable action and release time ratio●Power supply voltage range: 2.7V~5.5V●Low THD: 0.04% (typical value)●Low power shutdown mode
● Built in 2V low noise microphone bias