MAX98357A decoder stereo DAC I2S - SparkFun DEV-14809

Description

The DAC stereodecoder's module to communicate through theI2Sinterface. Built-inclass D amplifiercan provide up to3.2 W of power to the speakers or headphones with impedance up to4 Ω. Itprocesses the digital signal from computer/microcomputer to analog, which are processed through the speakers. It is also compatible with devices such asRaspberry PiorArduino. The module can be supplied with voltagefrom 2.5 V to 5.5 Vand a maximum current consumption is 1.5 A.

Pins PIN Description LRCLK Frame Clock - informs the amplifier about input channel (left/right or stereo) BCLK Bit Clock - tells the amplifier when to read the data from the pins data. DIN Data in - the input data. GAIN The gain setting +3/6/9/12/15 dB (by default is +9 dB) SD Shutdown and channel select GND The mass of the system. 2.5-5.5 V

Powered from 2.5 V to 5 V.

Specification

• Supply voltage: 2.5 V to 5.5 V
• Output power: max. 3.2 W at 4 Ω (5 V)
• Select of the output channel: left, right, or stereo - left and right (default)
• Sampling frequency: 8 kHz to 96 kHz
• Resolution of sampling rate: 16/32 bits
• Current consumption at rest: the 2.4 mA
• Other features:
  • Class D amplifier
  • Does not require MCLK
  • Insulation of clicks during power on/off
  • Protection against short circuit and overheating

Useful links

• The website of the manufacturer of SparkFun
• Scheme
• The EagleCAD Files
• Documentation of MAX98357A
• The GitHub Repository