ESP32 datasheet(28/64 Pages) ESPRESSIF

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3. Functional Description

3.5.1 Wi-Fi Radio and Baseband

The ESP32 Wi-Fi Radio and Baseband support the following features:

• 802.11b/g/n

• 802.11n MCS0-7 in both 20 MHz and 40 MHz bandwidth

• 802.11n MCS32 (RX)

• 802.11n 0.4 µs guard-interval

• up to 150 Mbps of data rate

• Receiving STBC 2×1

• Up to 20.5 dBm of transmitting power

• Adjustable transmitting power

• Antenna diversity

ESP32 supports antenna diversity with an external RF switch. One or more GPIOs control the RF switch and

selects the best antenna to minimize the effects of channel fading.

3.5.2 Wi-Fi MAC

The ESP32 Wi-Fi MAC applies low-level protocol functions automatically. They are as follows:

• 4 × virtual Wi-Fi interfaces

• Simultaneous Infrastructure BSS Station mode/SoftAP mode/Promiscuous mode

• RTS protection, CTS protection, Immediate Block ACK

• Defragmentation

• TX/RX A-MPDU, RX A-MSDU

• TXOP

• WMM

• CCMP (CBC-MAC, counter mode), TKIP (MIC, RC4), WAPI (SMS4), WEP (RC4) and CRC

• Automatic beacon monitoring (hardware TSF)

3.6 Bluetooth

The chip integrates a Bluetooth link controller and Bluetooth baseband, which carry out the baseband protocols

and other low-level link routines, such as modulation/demodulation, packet processing, bit stream processing,

frequency hopping, etc.

3.6.1 Bluetooth Radio and Baseband

The Bluetooth Radio and Baseband support the following features:

• Class-1, class-2 and class-3 transmit output powers, and a dynamic control range of up to 24 dB

• π/4 DQPSK and 8 DPSK modulation

• High performance in NZIF receiver sensitivity with over 94 dBm of dynamic range

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ESP32 Datasheet V3.4

ESP32 Datasheet(PDF) 28 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.