7. The noise of the integrated circuit
There are two types of noise interference in integrated circuits: one is radiated and the other is conductive. These noise spikes can have a large impact on other electronic devices connected to the same AC grid. The noise spectrum is extended to more than 100MHz. In the laboratory, you can use a high-frequency oscilloscope (100MHz or more) to observe the waveform between an integrated circuit power supply and the ground pin on a general-purpose single-chip system board. You can see that the noise spikes and peaks can reach hundreds of millivolts or even Volt.
Post time: Aug-24-2021