Esp32-H2 Crystal Oscillator Layout (Connected To The Ground) - Espressif Systems ESP32-H2 Series Hardware Design Manuallines

3 PCB Layout Design
• The external matching capacitors should be placed on the two sides of the crystal, not connected directly
to the series components, and at the end of the clock trace, to make sure the ground pad of the capacitor
is close to that of the crystal.
• Do not route high-frequency digital signal traces under the crystal. It is best not to route any signal trace
under the crystal. The vias on the power traces on both sides of the crystal clock trace should be placed as
far away from the clock trace as possible, and the two sides of the clock trace should be surrounded by
grounding copper.
• As the crystal is a sensitive component, do not place any magnetic components nearby that may cause
interference, for example large inductance component, and ensure that there is a clean large-area ground
plane around the crystal.
Figure 15: ESP32-H2 Crystal Oscillator Layout (Connected to the Ground)
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ESP32-H2 Series Hardware Design Guidelines v0.5