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Domino I2S Audio Tile Board


When connected to the Domino Pi board, the Domino I2S Tile adds audio capabilities and ports:

  • Wolfson WM8978 Stereo CODEC with Speaker Driver (Datasheet), faturing:
  • DAC SNR 98dB, THD -84dB ('A' weighted @ 48kHz)
  • ADC SNR 95dB, THD -84dB ('A' weighted @ 48kHz)
  • On-chip Headphone Driver with 'capless' option
  • 40mW per channel into 16ohm / 3.3V SPKVDD
  • 1W output power into 8ohm BTL speaker / 5V SPKVDD
  • Capable of driving piezo speakers
  • Stereo speaker drive configuration
  • Stereo Differential or mono microphone Interfaces
  • Programmable preamp gain
  • Psuedo differential inputs with common mode rejection
  • Programmable ALC / Noise Gate in ADC path
  • Low-noise bias supplied for electret microphones
  • Enhanced 3-D function for improved stereo separation
  • Digital playback limiter
  • 5-band Equaliser (record or playback)
  • Programmable ADC High Pass Filter (wind noise reduction)
  • Programmable ADC Notch Filter
  • Aux inputs for stereo analogue input signals or 'beep'
  • On-chip PLL supporting 12, 13, 19.2MHz and other clocks
  • Support for 8, 11.025, 12, 16, 22.05, 24, 32, 44.1 and 48kHz sample rates
  • Low power, low voltage - 2.5V to 3.6V (digital: 1.71V to 3.6V)
  • 5x5mm 32-lead QFN package
  • 3.5 mm Stereo Audio Jack (Tip: Left / Ring: Right / Sleeve: Ground): LINE OUT / HEADPHONE OUT
  • SPDIF Optical Transmitter: DIGITAL AUDIO OUT
  • On 2x edge header pins: Stereo SPEAKER OUT
  • Integrated ? 4.5 mm Mono Electret Microphone, also available on edge header pins
  • On 2x Pin Header: Stereo AUX IN

The Domino Dual Ethernet Tile connects as a West-side Tile.

It is only compatible with the Domino Pi board, as the Domino Qi Mini does not feature I2S interface.

I2S board I2S board I2S board


Specs Value
Weight 10 g
Dimensions 50.8 x 33.02 x 24 mm
Audio CODEC Wolfson WM8978
LINE OUT / HEADPHONE OUT 3.5 mm Stereo Audio Jack
SPEAKER OUT 2x Edge Header Pins
Microphone Integrated ? 45 mm Mono Electret Microphone, 2x Edge Header Pins
AUX IN 2x Header Pins


I2S Pinout

Pinout in PDF

Playing Audio and Music Using I2S board

Play Audio and Musci