ESP32-PICO datasheet(40/64 Pages) ESPRESSIF

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6 RF Characteristics

This section contains tables with RF characteristics of the Espressif product.

The RF data is measured at the antenna port, where RF cable is connected, including the front-end loss. The

front-end circuit is a 0 Ω resistor.

Devices should operate in the center frequency range allocated by regional regulatory authorities. The target

center frequency range and the target transmit power are configurable by software. See ESP RF Test Tool and

Test Guide for instructions.

Unless otherwise stated, the RF tests are conducted with a 3.3 V (±5%) supply at 25 ºC ambient temperature.

6.1

Wi-Fi Radio (2.4 GHz)

Table 21: Wi-Fi RF Characteristics

Name

Description

Center frequency range of operating channel

2412 ~ 2484 MHz

Wi-Fi wireless standard

IEEE 802.11b/g/n

6.1.1 Wi-Fi RF Transmitter (TX) Characteristics

Table 22: TX Power with Spectral Mask and EVM Meeting 802.11 Standards

Min

Typ

Max

Rate

(dBm)

802.11b, 1 Mbps, DSSS

—

19.5

—

802.11b, 11 Mbps, CCK

—

19.5

—

802.11g, 6 Mbps, OFDM

—

18.0

—

802.11g, 54 Mbps, OFDM

—

14.0

—

802.11n, HT20, MCS0

—

18.0

—

802.11n, HT20, MCS7

—

13.0

—

802.11n, HT40, MCS0

—

18.0

—

802.11n, HT40, MCS7

—

13.0

—

Table 23: TX EVM Test1

Min

Typ

Limit

Rate

(dB)

802.11b, 1 Mbps, DSSS

—

–26.5

–10.0

802.11b, 11 Mbps, CCK

—

–26.5

–10.0

802.11g, 6 Mbps, OFDM

—

–24.0

–5.0

802.11g, 54 Mbps, OFDM

—

–30.0

–25.0

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