3.4 Microphone Inputs

The IS2083BM SoC supports:
  • One digital microphone with one (mono) or two channels (stereo L and R)
  • Two analog microphones (left and right)
Note: Do not use analog and digital microphones simultaneously.

The DIGMIC interfaces should only be used for PDM digital microphones (typically, MEMS microphones) up to 4 MHz of clock frequency. I2S-based digital microphones should use the external I2S port.

Note: To avoid saturation in the PDM Digital Microphone path, Microchip recommends to limit the PDM maximum input level to -6 dBFS.