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Schematics for my resistor ladder DAC - based digital oscillator for Eurorack.
It uses lookup tables for V/Oct to frequency, and for the sine wavetable. Saw, triangle and square waves are all calculated in the audio interrupt loop.
If I remade this module now, I would use a MCP6000 series op amps for the analogue input buffers, and an MCP4822 or similar DAC for the output.
92734918dThis file is pinned to the selected release. Download the original to open it in your design tool.