"Crosstalk" from nearby wires, electromagnetic interference (EMI) from Wi-Fi and power lines, or even cosmic rays. The Toolkit for Quiet
To stop noise, you have to know where it comes from. Generally, it falls into two buckets: Noise Reduction Techniques in Electronic Systems
Sometimes, noise is a neighbor problem. High-speed digital components are "loud," while analog sensors are "quiet" and sensitive. Simply keeping these groups physically apart on a circuit board—and ensuring their return paths don't cross—can reduce interference more effectively than expensive shielding. The Modern Challenge "Crosstalk" from nearby wires
allow slow signals through while blocking high-frequency "hiss." it falls into two buckets: Sometimes