Transcription of Hardware Design Guidelines - Espressif
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Hardware Design Guidelines - Espressif
ESP32 Hardware Design GuidelinesVersion SystemsCopyright This DocumentThe Guidelines outline recommended Design practices when developing standalone or add-on systems based onthe ESP32 series of products, including ESP32 SoCs, ESP32 modules and ESP32 development UpdatesPlease always refer to the latest version HistoryFor the revision history of this document, please refer to thelast Change NotificationEspressif provides email notifications to keep customers updated on changes to technical documentation. Pleasesubscribe Note that you need to update your subscription to receive notifi-cations of new products you are not currently subscribed certificates for Espressif products Overview12 Schematic Power Digital Power Analog Power Power-on Sequence and System Power-on Flash (compulsory) and PSRAM (optional) Crystal External Clock Source (compulsory) RTC (optional) External Touch Sensor103 PCB Layout Standalone ESP32 General Principles of PCB Positioning an ESP32 Module on a Base Power Crystal Flash & External Touch ESP32 as a Slave
in current draw, when ESP32 is in transmission mode, may cause a power rail collapse. Therefore, it is highly recommended to add another 10 F capacitor to the power trace, which can work in conjunction with the 0.1 F capacitor. LC filter circuit needs to be added near the power pin so as to suppress high-frequency harmonics.
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