MAX9814 Microphone AGC Amplifier Board Module Auto Gain Control CMA-4544PF-W For Arduino, Raspberry etc Description 1. Supply Voltage: 2.7v-5.5v @ 3mA current 2. Output: 2Vpp on 1.25V bias 3. Frequency Response: 20Hz - 20 KHz 4. Programmable Attack and Release Ratio 5. Automatic gain, selectable max from 40dB, 50dB or 60dB 6. Low Input-Referred Noise Density of 30nV/ 7. Low THD: 0.04% (typ) Data https://elecena.pl/product/17097097/max9814-microphone-agc-amplifier-module 2020-08-05 https://elecena.pl/product/17097097/max9814-microphone-agc-amplifier-module 2020-09-01 https://elecena.pl/product/17097097/max9814-microphone-agc-amplifier-module 2021-03-02 https://elecena.pl/product/17097097/max9814-microphone-agc-amplifier-module 2025-07-09