Specifications

Table Of Contents

ESP32-SL specification V1.0

6.DESIGN GUIDE

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Application circuit

2. Antenna layout requirements

(1) The following two methods are recommended for the installation location on the

motherboard:

Option 1: Place the module on the edge of the main board, and the antenna area

protrudes from the edge of the main board.

Option 2: Place the module on the edge of the motherboard, and the edge of the

motherboard digs out an area at the position of the antenna.

(2) In order to meet the performance of the onboard antenna, it is forbidden to place

metal parts around the antenna.

3. Power supply

(1) 3.3V voltage is recommended, the peak current is more than 500mA

(2) It is recommended to use LDO for power supply; if using DC-DC, it is recommended

to control the ripple within 30mV.

(3) It is recommended to reserve the position of the dynamic response capacitor in the

DC-DC power supply circuit, which can optimize the output ripple when the load

changes greatly.

(4), 3.3V power interface is recommended to add ESD devices.