Espressif Systems ESP8684 Series, Hardware Design Manuallines, Page: 5 / 28

1 Overview
1 Overview
Note:
Check the link or the QR code to make sure that you use the latest version of this document:
https://espressif.com/sites/default/files/documentation/esp8684_hardware_design_guidelines_en.pdf
ESP8684 series is an ultra-low-power MCU-based SoC solution that supports 2.4 GHz Wi-Fi and Bluetooth
®
Low Energy (Bluetooth LE). With its state-of-the-art power and RF performance, this SoC is an ideal choice for a
wide variety of application scenarios relating to Internet of Things (IoT), smart home, industrial automation, health
care, and consumer electronics.
At the core of this chip is a 32-bit RISC-V single-core processor that operates at up to 120 MHz. The chip
supports application development, without the need for a host MCU.
ESP8684 series provides a highly-integrated way to implement Wi-Fi and Bluetooth LE technologies using a
complete RF subsystem, including a antenna switch, RF balun, power amplifier, low noise amplifier (LNA), filter,
power management unit, calibration circuits, etc. As a result, PCB size has been greatly reduced.
With its advanced calibration circuitry, ESP8684 can dynamically adjust itself to remove external circuit
imperfections or adapt to changes in external conditions. As such, the mass production of ESP8684 series does
not require expensive and specialized Wi-Fi test equipment.
For more information about ESP8684 series, please refer to ESP8684 Series Datasheet .
Note:
Unless otherwise specified, ”ESP8684” used in this document refers to the series of chips, instead of a specific chip
variant.
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ESP8684 Series Hardware Design Guidelines v1.1