The effect of installing it on my headphone amplifier: (The machine cannot be covered; the green PCB below is also an additional one, input switching circuit.)The board was made when the 5 yuan proofi
As shown in Figure 1, I know how to calculate RC filtering. I know the frequency of the square wave and the three RC constants reach full amplitude. The filtering effect is a bit like a dorsal fin sha
Two questions about single-chip microcomputers 1. In addition to the starting capacitor, what other conditions are needed for the single-chip microcomputer to start the external crystal oscillator? Is