MAX9814, Microphone Amplifier with AGC and Low-Noise Microphone Bias.
Fitur
- 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 (3mm x 3mm) Package
- -40°C to +85°C Extended Temperature Range
Layout
Gain:
- Gain VDD = 40.5dB
- Gain GND = 50.6dB
- Gain NC = 60.5dB
Attack Release Ratio:
- AR GND = 1:500 ms/ms
- AR VDD = 1:2000 ms/ms
- AR NC = 1:4000 ms/ms
Skema
Port Extra Mic
Manufaktur
