Pcb Layout Design; General Principles Of Pcb Layout - Espressif Systems ESP32-S2 Hardware Design Manuallines

3. PCB Layout Design

3. PCB Layout Design
This chapter introduces the key points of designing ESP32-S2 PCB layout with the example of ESP32-S2 mod-
ule.
While the high level of integration makes the PCB design and layout process simple, the performance of the system
strongly depends on system design aspects. To achieve the best overall system performance, please follow the
guidelines specified in this document for circuit design and PCB layout. All the common rules associated with
good PCB design still apply and this document is not an exhaustive list of good design practices.
The ESP32-S2 PCB layout design is shown in Figure 10.

3.1 General Principles of PCB Layout

We recommend a four-layer PCB design.
• The first layer is the TOP layer for signal traces and components.
• The second layer is the GND layer without signal traces being routed so as to ensure a complete GND plane.
• The third layer is the POWER layer where a GND plane should be applied to better isolate the RF and crystal
Espressif Systems
Figure 10: ESP32­S2 PCB Layout
10
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ESP32-S2 Hardware Design Guidelines V1.1