4 ms·
Small caps near a chip are like an L1 current cache for all the transitor switching events.
by sheepshear 3y ago
Small caps near a chip are like an L1 current cache for all the transitor switching events.
- ggm 3y agoSo it imparts hysteresis and prevents parasitic events in current switching contexts? Would you still need these if somehow the circuit was a low frequency continuous wave function? If feels like these are a side effect of digital use, high speed switching states.
- sheepshear 3y agoI chose a software analogy and digital example because this is a software forum. Don't read too much into it. In a different analogy, you could say that capacitance gives inertia to voltage and inductance gives inertia to current. The power loop acts as an inductor and antenna. It's susceptible to disturbances from the chip, the power supply, and interference. Analog chips are particularly susceptible to such disturbances. It's possible sometimes to not use a cap.