top of page
Waveforms
My first test involved testing AIN and A0. The noise is from whistling. As we can see audio out is clearly larger, which indicates that the IC is working as intended.
My second test involved testing AIN and AO again, but this time by clapping, as I wanted to see their responses to different frequencies.
My third test involved observing the oscillating frequency. I applied 3V and received 464kHz. Typ. 512kHz, according to the datasheet. I was relatively close to the typical frequency. If I had used a higher voltage, such as 3.7V it would have been closer.
Testing Voice Modulator with an AC Signal
bottom of page