22 January & February 2021 http://www.elektormagazine.com
I
2
S Test Signal Generatorwith AVR Microcontroller
32-Bit 1-kHz Digital Sine, fs 192 kHz,
Level Adjustable from 0 to -110 dB
By Ton Giesberts (Elektor)When you are testing or repairing an
audio DAC with — for some reason — the
analog audio output signal missing or
being distorted and it is uncertain if the
signal source has a problem (software and/
or hardware) or the DAC circuit itself is
having an issue, this project can provide
the answer. Its highly accurate digital sine
wave test signal is also ideal to measure
the analog performance of the DAC.labs project