Esp32-H2 Crystal Oscillator Layout (Not Connected To The Ground) - Espressif Systems ESP32-H2 Series Hardware Design Manuallines

3 PCB Layout Design
Figure 16: ESP32-H2 Crystal Oscillator Layout (Not Connected to the Ground)
3.5 RF
The RF trace is routed as shown highlighted in pink in Figure 17.
Figure 17: ESP32-H2 RF Layout in a Four-layer PCB Design
• The RF trace should have 50 Ω characteristic impedance. The reference plane is the second layer. A
π-type matching circuit should be added on the RF trace and placed close to the chip, in a zigzag.
• For designing the RF trace at 50 Ω impedance, you could refer to the PCB stack-up design shown in Figure
18.
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ESP32-H2 Series Hardware Design Guidelines v0.5