Audio: Difference between revisions
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=== Speakers === | === Speakers === | ||
* Stereo speakers in base with tuned cavity behind them as per manufacturers' recommendations.</onlyinclude> | * Stereo speakers in base with tuned cavity behind them as per manufacturers' recommendations.</onlyinclude> | ||
Hardware: | |||
* Seltech GR1813L025UN8 (or compatible) | |||
Latest revision as of 21:16, 1 April 2021
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
Hardware:
- TS3A227ERVAR - Autonomous Audio Accessory Detection and Configuration Switch
- Detects 3-pole or 4-pole audio accessories (headphone / microphone) and configures internal switches to route the signals accordingly.
- FDV301N - N-channel MOSFET used to generate "PLUGDET" signal when headphone jack is inserted.
- CUI SJ-43516-SMT-TR - 4-contact, 3.5mm audio jack with tip and ring switches
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.
Hardware:
- Seltech GR1813L025UN8 (or compatible)