Electret microphone and OPA344 amplifier module - SparkFun BOB-12758

Bestseller
47398111
50 GEL
  • Brand SparkFun
  • Shipping from Poland
  • Post delivery June 12
  • Shipping cost for orders to Georgia from GEL 183

Properties

Other features

Brand
SparkFun

Description

Description

Module with electret microphone elektretowymand operational amplifier. Thanks to the applied system amp (OPA344), the voltage signal of the microphone is amplified 100-times. This allows for the direct connection of the module to the input pins of the analog-to-digital converter (e.g. analog inputsof the Arduino). The system is powered with the voltage ranging from 2.7 V to 5.5 V.

 

Specification
  • Supply voltage: from 2.7 V to 5.5 V
  • Current consumption: max 0.5 mA
  • Frequency range: 100 Hz to 10 000 Hz
  • The set does not containgoldpin strap, it can be purchased separately

  • Module dimensions : 17 x 11 x 8 mm
Connection method

Power should be connected between the pins of VCC (2.7 V to 5.5 V) and GND (ground). AUD is an output of amplified analog signal. It must be connected to the input pins of the analog-to-digital converter (e.g. analog inputsof the Arduino) usingwiresor using breadboard. Pins are the solder fields, for soldering the goldpin connectors(2.54 mm pitch).

 

Useful links
  • The website of the manufacturer: SparkFun BOB-12758
  • Diagram of the module
  • Eagle program files 
  • User manual
  • The files in the GitHub system
  • Documentation of the operational amplifier OPA344
  • Documentation of the microphone