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Description

Product information "Electret microphone amplifier GY-MAX9814 "

Add an ear to your project with this well-designed electret microphone amplifier with AGC. This fully assembled board comes with a 20-20KHz electret microphone soldered on. For amplification, we use the Maxim MAX9814, a special chip designed for amplifying electret microphones in situations where the volume of the sound is unpredictable.

This stylish microphone amplifier module stands out from the crowd and features automatic gain control. Automatic gain control (AGC) ensures that 'loud' nearby sounds are attenuated so they don't overpower and 'clip' the amplifier, and that quiet, distant sounds are also amplified. This amplifier is ideal if you want to record or track audio signals in an environment where levels change and you don't want to be constantly turning up the gain.

At the heart of this amplifier is the MAX9814 chip, which has a number of options that you can configure using the breakout. The maximum gain is set to 60 dB by default, but can also be set to 40 dB or 50 dB by connecting the gain pin to VCC or ground. You can also change the attack/release ratio from 1:4000 to 1:2000 or 1:500. The output of the amplifier is a maximum of 2 Vpp with a bias voltage of 1.25 V. It can therefore be used with any analogue/digital converter that has an input of up to 3.3 V without any problems. If you want to connect it to a line input, you only need to connect a 1-100uF capacitor in series (100uF is best).

Properties

Zolltarifnummer: 84733020
Brand: BerryBase
Country of Origin: China
EAN: 4251266703259
Gross Weight (kg): 0.003
Manufacturer ID: GY-MAX9814
Product ID: GY-MAX9814

Manufacturer and safety information

Manufacturer information
BerryBase GmbH
Bei den Mühren 70
DE 20457 Hamburg
https://www.berrybase.de
[email protected]

WEEE number: 83795550

Person responsible for the EU
See manufacturer information

Safety instructions
  • Avoid direct mechanical stress or damage to the product.
  • Only use the product in accordance with the manufacturer's instructions and specifications.
  • Protect the product from moisture, extreme heat or cold.
  • Do not operate in potentially explosive atmospheres unless expressly designed for this purpose.
  • Ensure correct cabling and prevent short circuits.
  • Only use compatible voltage sources and power supply units.
  • Keep the product away from strong sources of electromagnetic interference.
  • Avoid direct contact with water- or solvent-based substances.
  • Dispose of the product in accordance with the applicable environmental and electronics regulations.
  • Carry out recycling in accordance with the WEEE Directive or local regulations.
  • For products with batteries, remove them before disposal and recycle them separately.
  • Do not dispose of with household waste; use specialised recycling centres.

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