MAX9814Is a Low Cost¡¢High Performance Microphone Amplifier£¬With Automatic Gain Control(AGC)and Low Noise Microphone Bias¡£The Device Has a Low Noise Front-End Amplifier.¡¢Variable Gain Amplifier(VGA)¡¢Output Amplifier¡¢Microphone Bias Voltage Generator andAGCThe Control Circuit
Specifications:
- Supply Voltage: 2.7v-5.5v @ 3mA current
- Output: 2Vpp on 1.25V bias
- Frequency Response: 20Hz - 20 KHz
- Programmable Attack and Release Ratio
- Automatic gain, selectable max from 40dB, 50dB or 60dB
- Low Input-Referred Noise Density of 30nV
- Low THD: 0.04% (typ)
Automatic Gain Control(AGC)
3Gain Setting(40dB¡¢50dB¡¢60dB)
Programmable Action Time
Programmable Action and Release Time Ratio
2.7VTo5.5VPower Supply Voltage Range
Low Input Noise Density30nV/
LowTHD£º0.04% (Typical Value)
Low Power Shutdown Mode
Built-in2VLow Noise Microphone Bias
Provides Space-Saving14PinTDFN (3mm x 3mm)Package
-40°CTo+85°CExtended Temperature Range
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