I2S-DAC-dat

• amplifier-dat

I2S DAC Decoder speaker

• PCM5122-dat - MPC1083-dat

• PCM5102-dat - AMP1006-dat

• MAX98357-dat

• UDA1334-dat - AMP1013-dat - NXP-dat

Common Microphone, Speaker Wiring

Pin

Name	default ESP32	also Name	func	RPI GPIO	RPI pin
SCK	26	BCLK	Serial Data Clock / Bit clock line	G18	PIN 12
WS	25	LRCK / LRC	Serial Data-Word select line	G19	PIN 35
SD	22	SDIN / SDOUT	At least one multiplexed data line	G21	PIN 40

I2S Circuit:

• Arduino/Genuino Zero, MKR family and Nano 33 IoT

• MAX98357:

  • GND connected GND
  • VIN connected 5V
  • LRC connected to pin 0 (Zero) or 3 (MKR), A2 (Nano) or 25 (ESP32)
  • BCLK connected to pin 1 (Zero) or 2 (MKR), A3 (Nano) or 5 (ESP32)
  • DIN connected to pin 9 (Zero) or A6 (MKR), 4 (Nano) or 26 (ESP32)

  DAC Circuit:

  • ESP32 or ESP32-S2
  • Audio amplifier
    • Note:
      • ESP32 has DAC on GPIO pins 25 and 26.
    • ESP32-S2 has DAC on GPIO pins 17 and 18.
  • Connect speaker(s) or headphones.

• MAX98357-dat