PCB Design for ESP32 Stand alone module

[salmanfaris]

Great, also could you please mention esp32 SOC version, there are many different versions, that could be helpful.

[kowshik1729]

My application needs to use BLE option. So, I would like to get config for WROOM 32. If you feel it is less effecient please do send me ESP32's version suitable for my application.

[salmanfaris]

take a look at the ESP32 wroom data sheet page number 19, they provided a minimum circuit

Resource :

• https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_en.pdf
• ESP Hardware Design Guidelines - ESP32 - — ESP Hardware Design Guidelines latest documentation

[kowshik1729]

@salmanfaris thanks for the reply but this is not exactly what I am looking for I think this is the system on chip version of ESP 32 Wroom. There is no LNA circuit connection for antenna part. Please let me know if you find the the appropriate connections for the ESP 32 stand alone chip. To be simple, I want the circuit that we find when the metal part of SoC is removed.

[salmanfaris]

@kowshik1729 so you need the SoC minimum config, not the Module right?

Page No. 18

[kowshik1729]

Yes, Exactly. I need PCB layout for something as shown below. The rip opened part.

[salmanfaris]

@salmanfaris said in PCB Design for ESP32 Stand alone module:

take a look at the ESP32 wroom datasheet page number 19, they provided a minimum circuit

If you need the module schematic? the use this.

[kowshik1729]

@salmanfaris Thank you so much. I am exactly looking for SoC minimum config, not the module. Shall ping the forum in case of any hassle.

[salmanfaris]

@kowshik1729 Great.

[kowshik1729]

@salmanfaris In the figure 3 : ESP32-WROOM-32 Schematics, should I surely use all the capacitors for VDD pins? Are there any redundant connections like these? I want to reduce these unnecessary connections to keep my board size all low as possible. Please suggest how I can optimize the connections?