Reverse-engineering and comparing two Game Boy audio amplifier chips

Reverse-engineering and comparing two game boy audio amplifier chips @ righto.com

The Nintendo Game Boy contains an audio amplifier chip for sound through a speaker or headphones. In this post, I reverse-engineer this chip and compare it with the later Game Boy Color chip (reverse-engineered earlier). Unexpectedly the Game Boy Color uses an entirely different amplifier design from the original Game Boy, which may explain why the two systems sound different.

from Dangerous Prototypes https://ift.tt/3ia2Ujd