Audio: Difference between revisions - Pyra Wiki

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=== ADC/DAC ===
* [https://www.ti.com/lit/ds/symlink/twl6040.pdf TWL6040] integrated 4-channel DAC, 2-channel ADC, headphone and speaker amp, microphone preamp, and vibration driver using dedicated McPDM interface for communication with the OMAP5
=== Jack ===
=== Jack ===
* 3.5mm headset TRRS (stereo audio and microphone) connector with automatic switch to go from [https://en.wikipedia.org/wiki/OMTP OMTP] to [https://en.wikipedia.org/wiki/CTIA_%E2%80%93_The_Wireless_Association CTIA] as seen [https://en.wikipedia.org/wiki/Phone_connector_%28audio%29#TRRS_standards here]
* 3.5mm headset TRRS (stereo audio and microphone) connector with automatic switch to go from [https://en.wikipedia.org/wiki/OMTP OMTP] to [https://en.wikipedia.org/wiki/CTIA_%E2%80%93_The_Wireless_Association CTIA] as seen [https://en.wikipedia.org/wiki/Phone_connector_%28audio%29#TRRS_standards here]

Revision as of 11:02, 22 June 2020

ADC/DAC

  • TWL6040 integrated 4-channel DAC, 2-channel ADC, headphone and speaker amp, microphone preamp, and vibration driver using dedicated McPDM interface for communication with the OMAP5

Jack

  • 3.5mm headset TRRS (stereo audio and microphone) connector with automatic switch to go from OMTP to CTIA as seen here

Volume Wheel

  • Potentiometer to GPIO input in SoC, 10-Bit Resolution (allows software override of volume control)

Microphone

  • Microphone located at the left edge between keyboard and D-pad.

Speakers

  • Stereo speakers in base with tuned cavity behind them as per manufacturers' recommendations.
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