👉What is decoupling capacitor ? In electronics we use some circuits which are highly sensitive to current and voltage spikes, voltage fluctuations and electrical noise we need to protect these devices. And capacitors are used to filter voltage and also they protect microchips from electrical noise. So, these capacitors which are used to protect circuit from external noise and voltage spikes and fluctuations are called as decoupling capacitor. They separate device from other circuit to which they are connected. 👉Where to place decoupling capacitors on PCB ? These circuits are placed as close as possible to microchip. They also provide extra energy to the IC's and remove disturbances to the logic signal. What type of capacitors we should use for decoupling ? 1. Ceramic COG : small, low loss 2. Ceramic X7R : small, low loss and higher values than COG Above types of capacitor's are mostly preferred in RF decoupling applications. 3. Electrolytic capacitor from 0.1uf to 10...
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