ADA3346 · AdafruitActive
Adafruit product #3346. Interfaces: I2S.
| Part number | ADA3346 |
|---|---|
| Manufacturer | Adafruit |
| Category | Audio › Speakers & Buzzers |
| Pins | 78 |
| Power | 3 W |
Adafruit I2S 3W Stereo Speaker Bonnet for Raspberry Pi pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | 5.0V | bidirectional | |
| 2 | 5.0V | bidirectional | |
| 3 | GND | ground | |
| 4 | TXD | bidirectional | |
| 5 | RXD | bidirectional | |
| 6 | BCLK | bidirectional | |
| 7 | GND | ground | |
| 8 | GPIO23 | bidirectional | |
| 9 | GPIO24 | bidirectional | |
| 10 | GND | ground | |
| 11 | GPIO25 | bidirectional | |
| 12 | SPI_CE0 | bidirectional | |
| 13 | SPI_CE1 | bidirectional | |
| 14 | EECLK | bidirectional | |
| 15 | GND | ground | |
| 16 | GPIO12 | bidirectional | |
| 17 | GND | ground | |
| 18 | GPIO16 | bidirectional | |
| 19 | GPIO20 | bidirectional | |
| 20 | DIN | bidirectional | |
| 21 | 3.3V | power | |
| 22 | SDA | bidirectional | |
| 23 | SCL | bidirectional | |
| 24 | GPIO4 | bidirectional | |
| 25 | GND | ground | |
| 26 | GPIO17 | bidirectional | |
| 27 | GPIO27 | bidirectional | |
| 28 | GPIO22 | bidirectional | |
| 29 | 3.3V | power | |
| 30 | SPI_MOSI | bidirectional | |
| 31 | SPI_MISO | bidirectional | |
| 32 | SPI_SCLK | bidirectional | |
| 33 | GND | ground | |
| 34 | EEDATA | bidirectional | |
| 35 | GPIO5 | bidirectional | |
| 36 | GPIO6 | bidirectional | |
| 37 | GPIO13 | bidirectional | |
| 38 | LRCLK | bidirectional | |
| 39 | GPIO26 | bidirectional | |
| 40 | GND | ground | |
| 41 | SDA | bidirectional | |
| 42 | SCL | bidirectional | |
| 43 | TXD | bidirectional | |
| 44 | RXD | bidirectional | |
| 45 | GPIO4 | bidirectional | |
| 46 | GPIO17 | bidirectional | |
| 47 | BCLK | bidirectional | |
| 48 | GPIO27 | bidirectional | |
| 49 | GPIO22 | bidirectional | |
| 50 | GPIO23 | bidirectional | |
| 51 | GPIO24 | bidirectional | |
| 52 | GPIO25 | bidirectional | |
| 53 | SPI_MOSI | bidirectional | |
| 54 | SPI_MISO | bidirectional | |
| 55 | SPI_SCLK | bidirectional | |
| 56 | SPI_CE0 | bidirectional | |
| 57 | SPI_CE1 | bidirectional | |
| 58 | GPIO5 | bidirectional | |
| 59 | GPIO6 | bidirectional | |
| 60 | GPIO12 | bidirectional | |
| 61 | GPIO13 | bidirectional | |
| 62 | GPIO16 | bidirectional | |
| 63 | LRCLK | bidirectional | |
| 64 | GPIO20 | bidirectional | |
| 65 | DIN | bidirectional | |
| 66 | GND | ground | |
| 67 | GND | ground | |
| 68 | GND | ground | |
| 69 | 5.0V | bidirectional | |
| 70 | 5.0V | bidirectional | |
| 71 | 5.0V | bidirectional | |
| 72 | 3.3V | power | |
| 73 | 3.3V | power | |
| 74 | 3.3V | power | |
| 75 | RIGHT+ | bidirectional | |
| 76 | RIGHT- | bidirectional | |
| 77 | LEFT- | bidirectional | |
| 78 | LEFT+ | bidirectional |
Schematic symbol and footprint
Footprint: Adafruit Stereo 3W Speaker Bonnet (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
Datasheet
Where to buy
Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.
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