STM32WLE4JC datasheet(71/145 Pages) STMICROELECTRONICS

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DS13105 Rev 8

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STM32WLE5/E4xx

Electrical characteristics

133

Table 30. Sub-GHz radio receive mode specifications

Symbol

Description

Conditions

Min

Typ

Max

Unit

RXS_2FB

Sensitivity 2-FSK,

RX boosted gain,

split RF paths for RX and Tx,

RF switch insertion loss excluded

BR = 0.6 Kbit/s, FDA = 0.8 kHz,

BW = 4 kHz

–125

dBm

BR = 1.2 Kbit/s, FDA = 5 kHz,

BW = 20 kHz

–123

BR = 4.8 Kbit/s, FDA = 5 kHz,

BW = 20 kHz

-–117

BR = 38.4 Kbit/s, FDA = 40 kHz,

BW = 160 kHz

–108

BR = 250 Kbit/s, FDA = 125 kHz,

BW = 500 kHz

–103

RXS_LB

Sensitivity LoRa,

RX boosted gain,

split RF paths for RX and Tx,

RF switch insertion loss excluded

BW = 10.4 kHz, SF = 7

–135

BW = 10.4 kHz, SF = 12

–148

BW = 125 kHz, SF = 7

–125

BW = 125 kHz, SF = 12

–138

BW = 250 kHz, SF = 7

–122

BW = 250 kHz, SF = 12

–135

BW = 500 kHz, SF = 7

–118

BW = 500 kHz, SF = 12

–130

RSX_2F

Sensitivity 2-FSK, RX power

saving gain with direct tie

connection between RX and Tx

BR = 4.8 Kbit/s, FDA = 5 kHz,

BW = 20 kHz

-–115

RXS_L

Sensitivity LoRa, RX power

saving gain with direct tie

connection between RX and Tx

BW = 125 kHz, SF = 12

–135

CCR_F

Co-channel rejection, FSK

–9

CCR_L

Co-channel rejection, LoRa

SF = 7

SF = 12

ACR_F

Adjacent channel rejection, FSK

Offset = ±50 kHz

ACR_L

Adjacent channel rejection, LoRa

Offset = ±1.5 x BW_L,

BW = 125 kHz, SF = 7

-60

Offset = ±1.5 x BW_L,

BW = 125 kHz, SF = 12

-71

BI_F

Blocking immunity, FSK

Offset = ±1 MHz, BR = 4.8 Kbit/s,

FDA = 5 kHz, BW = 20 kHz

-67

Offset = ±2 MHz, BR = 4.8 Kbit/s,

FDA = 5 kHz, BW = 20 kHz

-70

Offset = ±10 MHz, BR = 4.8 Kbit/s,

FDA = 5 kHz, BW = 20 kHz

-76

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