A
Anonymous
Mar 23, 2026
Rating: 5/5
Reliable Sensor
Bought multiple units for a class project. All functioned perfectly out of the box.
Description
MAX9814 Microphone Amplifier Module, Audio AGC Mic Sensor Pickup with Low-Frequency Automatic Gain Control
Reviews
Attributes
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Supply Voltage Range | 2.7V to 5.5V DC |
| Automatic Gain Control | Yes, Low-Frequency AGC |
| Gain Range | 24dB to 36dB Adjustable |
| Attack Time | 10ms Typical |
| Release Time | 160ms to 2000ms |
| Output Signal Type | Analog Audio |
| Microphone Type Supported | 2-Pin Electret Condenser |
| Operating Temperature | -40°C to +85°C |
| PCB Dimensions | 15mm x 10mm x 3mm |
| Package Weight | 2.5 Grams |
5 reviews
A
Anonymous
Mar 14, 2026
Rating: 5/5
Great for Arduino
Used this for a voice logger project. The AGC keeps levels consistent even when I move away from the mic. Very satisfied.
A
Anonymous
Feb 21, 2026
Rating: 3/5
Okay for beginners
It works but requires some knowledge of audio biasing to get the best signal quality.
A
Anonymous
Feb 13, 2026
Rating: 4/5
Good module
Works well. Only giving 4 stars because the pin headers were not included in my batch, had to solder my own.
A
Anonymous
Feb 06, 2026
Rating: 5/5
Excellent AGC Performance
The automatic gain control is smooth. No pumping effects noticed during testing.
5 FAQ
Q: Does it have a mute function?
A: No, this specific module does not feature a hardware mute pin.
Q: Is the microphone included?
A: No, this module is the amplifier only. You need to purchase an electret microphone separately.
Q: What is the power consumption?
A: Typical supply current is approximately 1.5mA during normal operation.
Q: How do I adjust the release time?
A: Release time is typically set by an external capacitor connected to the REL pin according to the datasheet.
Q: Can this work with 5V Arduino?
A: Yes, the supply voltage range supports 5V logic systems perfectly.
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