Issue link: https://resources.pcb.cadence.com/i/1541046
31. Isolating Clocks, Resets, and Sensitive References from Noise Sources Clocks, resets, and reference voltages are the most noise-sensitive signals on a PCB. Noise coupled into a clock or reset line can create false triggers, jitter, or outright system failure. Analog references (such as those feeding ADCs, DACs, or sensor amplifiers) are especially vulnerable to digital switching, power rail noise, and ground bounce. Careful physical and electrical isolation of these nets is essential for system reliability, low-jitter performance, and measurement accuracy. When And Where To Apply Apply isolation practices at placement and initial routing for all clock generators, reset lines, oscillator circuits, reference voltage nets, and precision analog rails - especially in designs mixing analog, digital, RF, and power conversion. Example of proper oscillator isolation and layout with STM32