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 Typical Layout Problems and Q: The current ripple is not large, but the TX performance of RF is rather Q: The power ripple is small, but RF TX performance is Q: When ESP32 sends data packages, the power value is much higher or lower than the targetpower value, and the EVM is relatively Q: TX performance is not bad, but the RX sensitivity i
Notice: • The recommended voltage of the power supply for ESP32 is 3.3 V, and its recommended output current is 500 mA or more. • It is suggested that users add an ESD protection diode at the power entrance. 2.2 Power-on Sequence and System Reset 2.2.1 Power-on Sequence ESP32 uses a 3.3 V system power supply.
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