DACBerry 400S Audio Card for Raspberry Pi 400

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The DACBerry 400S is the first DAC designed specifically for the Raspberry Pi 400, providing high-quality audio output and a 3.5mm audio jack!

Important Note!

  • Due to changes with the TI driver without prior notice, the DACBerry400 Driver does not work YET on kernel 5.15.xx. OSA is working on it and we're in touch with them for updates.
  • Please ensure your DACBerry is sitting on all 40 GPIO pins when fitting. Incorrect fitting can permanently damage the board.

Details

The DACBerry400 range are high-resolution soundcards with gold plating and a subtle matte black finish. They fit directly onto the back of the Pi400, avoiding the clutter of cables and separate parts used with other solutions. It's also possible to use with the Raspberry Pi 4, 3 and Zero - plugging directly onto the GPIO header.

With no analogue audio outputs of its own, the Raspberry Pi 400 relies on additional hardware to provide features such as audio input/output. The 400 S has a single 3.5mm 4-pole TRRS jack for stereo out/mic-in which outputs line level to powered speakers or headphones. The board connects to the Raspberry Pi 400’s 40-pin GPIO header and provides a pass-through of the GPIO pins for further expansion.

No soldering is required, it’s simple to install the driver and use (see resources section below), connect your DACBerry400 to a set of speakers, headphones or an audio amplifier and enjoy crystal-clear high-quality audio playback.

The 400 S integrates a 96kHz/32bit DAC chip with hardware volume control, allowing you to play/record your files digitally. Outputs are line level headphone over a 3.5mm jack cable. The DACBerry400 uses the I2S interface for its audio input which reduces CPU load on the Raspberry Pi compared to USB solutions. It's powered directly from the GPIO header so no extra cables or power supplies are needed, keeping all USB ports on the Pi 400 free for other uses.

The software-configurable DACBerry400 fits easily into the Raspberry Pi ecosystem. It uses an integrated DSP to create 3D effects including equalisation and de-emphasis. This is complemented by a DAC with 102dB SNR and ADC with 92dB SNR. The low-noise design partitions the analogue and digital functions to achieve THD+N @ 1kHz of 0.003%.

Specifications

  • Compatible with the Raspberry Pi 400 and other 40-pin Raspberry Pi boards
  • Now fully supported by Raspberry Pi OS!
  • Analog soundcard designed specifically for the Raspberry Pi 400
  • Directly powered from the Raspberry Pi
  • Great for headphones (designed for 32 ohms, giving the best performance at 16 ohms)
  • Compatible with Raspberry Pi OS / OSMC / RuneAudio / Volumio / Moode / PiCorePlayer / PiMusicBox / OpenELEC
  • Integrated DSP with 3D Effects, EQ and De-Emphasis
  • Ultra low-noise LDO for analog power rail
  • Gold-plated 3.5mm headset/headphone jack (mic in – stereo out)
  • Low-Noise design with isolated Digital and Analog parts
  • DAC SNR 102dB @96kHz
  • ADC SNR 92dB @96kHz
  • THD+N 0.003% / -92dB @1kHz
  • Designed and assembled in Barcelona, Spain

Resources

GPIO Pin Usage

  • GPIOs 2-3 (Pins 3, 5) are used for configuration. If you are experienced with I2C, you may add other slave devices. If you are a novice, we don’t recommend this.
  • GPIOs 18-21 (Pins 12, 35, 38 and 40) are used for the sound interface. You can’t use them for any other purpose.
  • GPIO 26 (Pin 37) is used for the Board reset function. You can’t use it for any other purpose.
  • See also https://www.osaelectronics.com/learn/tutorials/gpio-usage-of-dacberry-series-boards/

DACBerry 400S Pinout

Orientation

Please ensure you fit the board to the Pi400 with the following orientation with all 40 pins connected:

DACBerry 400S orientation

Dimensions

  • Dimensions: 77 x 20 x 15.5 mm
  • Mounting holes: M2
  • PCB thickness: 1.6mm
  • Weight:25g

DACBerry400 S Dimensions

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