C3e-mb-pcb-v4

The main oscillator (25MHz, ±30ppm) is located near the compute module edge. Using an oscilloscope (500MHz minimum), probe TP12 (CLK_OUT). On V4, the signal should show less than 150ps of jitter. Higher jitter indicates shielding failure near the crystal.

: Drops voltage levels linearly for sensitive analog subsystems like microphones and image sensors. c3e-mb-pcb-v4

Micro-USB power regulation, charging paths, and audio codec arrays. The main oscillator (25MHz, ±30ppm) is located near

: Routes discrete eMMC/UFS storage lines alongside system RAM. The main oscillator (25MHz