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raspberry:sound_card [2018/08/03 13:40] admin |
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| - | ===== PiFi DAC - A Sound Card for the Raspberry Pi ===== | ||
| - | {{: | ||
| - | |||
| - | The PiFi DAC+ is a cheap Chinese clone of the HiFi Berry DAC+ Standard made by [[http:// | ||
| - | The drivers are already included in the kernel, to activate them check:\\ | ||
| - | * for the 3.12 kernel [[https:// | ||
| - | * for the 4.x kernel [[https:// | ||
| - | |||
| - | It's recommended **not to use earphones directly** - no headphone amp is build in.\\ | ||
| - | |||
| - | ---- | ||
| - | ==== Use of GPIOs ==== | ||
| - | The following GPIOs are used for the Sound Card:\\ | ||
| - | For configuration over I2C:\\ | ||
| - | GPIO2 (SDA 1) and GPIO3 (SCL1\\ | ||
| - | |||
| - | And as the sound interface over I2S:\\ | ||
| - | GPIO18 (PCM CLK), GPIO19 (PCM FS), GPIO20 (PCM D-IN), GPIO21 (D-OUT).\\ | ||
| - | PCM stands for Pulse-Code Modulation.\\ | ||
| - | |||
| - | < | ||
| - | <img src=" | ||
| - | </ | ||
| - | |||
| - | ---- | ||
| - | ==== Schematic ==== | ||
| - | [[https:// | ||
| - | |||
| - | ---- | ||