SparkFun Analog MEMS Microphone Breakout Module SPH8878LR5H-1 - SparkFun BOB-19389

The module manufactured by the SparkFun company - the analog MEMS SPH8878LR5H-1 microphone. The board is equipped with OpAmp , thanks to which it is possible to connect it directly to the ADC of the microcontroller, e.g. the Arduino module. SparkFun Analog MEMS Microphone Breakout includes an omnidirectional microphone that captures sounds coming from different directions well. The signal-to-noise ratio of the microphone is 66 dBV / Pa . The output impedance is 600 Ohm . The module is powered with the voltage in the range from 2.3 V to 3.6 V.

SparkFun Analog MEMS Microphone Breakout - module with an analog microphone SPH8878LR5H-1 - SparkFun BOB-19389.

In order to connect the MEMS analog microphone, use the analog interface of the microcontroller, eg Arduino . The module is supplied with the voltage from 2.3 V to 3.6 V.

• AUD - analog output
• GND - the ground of the system
• VCC - supply voltage from 2.3 V to 3.6 V

• SparkFun Analog MEMS Microphone Breakout - module with analog microphone SPH8878LR5H-1 - SparkFun BOB-19389 - 1 piece

• Microphone type: analog
• Technology: MEMS
• Scope: Omni-directional microphone
• Built-in chip: SPH8878LR5H-1
• Supply voltage: 2.3 V to 3.6 V
• Average current consumption: 265 uA
• Frequency range: 7 Hz to 36 kHz
• Signal-to-noise ratio (SNR): 66 dBV / Pa
• Sensitivity: ~ 44 dBV / Pa (unidirectional mode)
• Roll off: -3 dB at 7 Hz / +3 dB at 36 kHz
• Acoustic overload point: 134 dB SPL
• Built-in OPA344 chip providing 600 Ohm output impedance

Omni-directional MEMS Mic from SparkFun.

• The website of the manufacturer: SparkFun BOB-19389
• User Guide
• Layout diagram
• EagleCAD files
• Tile dimensions
• Technical documentation SPH8878LR5H-1
• GitHub hardware repository