Overview
A portable audio player using an R/2R ladder DAC driven directly by a microcontroller. Audio data is streamed from an SD card and output using register-level control.
Embedded audio system
A portable audio player using an R/2R ladder DAC driven directly by a microcontroller. Audio data is streamed from an SD card and output using register-level control.
An 8-bit R/2R ladder converts digital samples into an analog waveform. Careful resistor matching and timing were required to maintain signal quality.
