Datasheet DSP Add-on board
Datasheet DSP Add-on board
Overview
The HiFiBerry DSP add-on board is a board that allows to extend some HiFiBerry boards with a Digital Signal Processor for audio processing. The DSP can be programmed via Analog’s Sigma Studio or be used with pre-defined DSP programs.
Facts
- 300 MHz Digital Signal Processor (6144 instructions per sample incl. FFT and FIR accelerators)
- High quality asynchronous sample rate converter that can upsample/downsample/mix audio sources
- Users can upload programs developed with Analog’s SigmaStudio
- Connects to the DSP header of selected HiFiBerry sound cards
- No soldering, comes as a pre-fabricated kit.
- Directly powered from the Raspberry Pi, no additional power supply
Hardware
Note that the actual board might look a bit different. Layout and components might change without further notice. We do not guarantee a specific PCB layout or specific components
| 1 | DSP connection header (2×20 + 2×3 pin) |
| 2 | Digital signal processor |
| 3 | Extension header |
Headers
DSP header 1 2×20 pin – same pinout as Raspberry Pi GPIO header
DSP header 2
DOUT1 DSP.
| DOUT Pi | 1 | 2 | DOUT1 |
| DSP present | 3 | 4 | – |
| ADC DIN | 5 | 6 | DOUT2 |
Extension header
| SPDIF IN | 1 | 2 | SPDIF OUT |
| GND | 3 | 4 | +3.3V |
| 5 | 6 | ||
| 7 | 8 |
Media
Additional information
- HiFiBerryOS filter designer
- DSP Toolkit (open source software to program and control the DSP)