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FSK 433MHz si4463 Wireless Transceiver Module with UART Serial Communication

DL-RTS4463M is a FSK Modulation 433MHz Wireless Transceiver Module with SI4463 Chip and Serial Communication, long range 2100M
  • DL-RTS4463M

  • 433Mhz

  • SI4463

  • 20dbm

  • 2.1V-3.6V

  • -121dBm

  • 2100m

  • 32*18.5*2mm


433Mhz UART Serial Communication Wireless Transceiver Module with SI4463 Chip

DL-RTS4463M is a Wireless Data Transparent Transmission Module with UART Communication, it was designed base on Siliconlabs' new generation chip SI4463. This RF Module has high integration and ultra-high performance, with low power consumption, which adopts spread spectrum communication technology, and has the characteristics of long transmission distance (2100M), extremely high sensitivity (-121dBm), super anti-interference ability, flexible to use, and convenient parameter configuration. 

This wireless module adopts highly efficient cyclic interleaving error correction coding, which greatly improves its anti-interference ability and sensitivity. It provides multiple channel selections, and support parameters online modification, such as serial port rate, transceiver frequency, transmit power, RF rate and other important parameters. The working voltage of DL-RTS4463M module is 2.1V-3.6V, and the working voltage of 3.5V-5.5V can be customized. In the receiving state, it only consumes 15mA current.

This module is an excellent RF Transparent Transmission Module, which has a good radio frequency performance; it uses single-chip architecture, combined with a cost-effective low-power MCU, electronic switches, high-precision chip crystal, etc. There are four modes of this RF module: any mode can be switched arbitrarily. In the 1SEC cycle polling wake-up power-saving mode, the receiving current consumes only tens of microamperes, and a 3.6V / 3.6AH battery can work for several years, which is very suitable for battery-powered system.


● 1-2 kilometers transmission distance (depends on rate, antenna performance)

● Efficient cyclic interleaving error correction coding

● Working frequency: 433.92M (other frequencies need to be customized)

● Half-duplex, one-to-one, one-to-many applications

● Data buffer 256Byte, sleep 1uA

● Working temperature: -30 ℃ ~ + 75 ℃

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DL-RTS4463M Specification V1.0 do

Technical Parameter

Item Definition  Standard parameter value  Remark
1 Working channel  434.125MHz
2 Transmit power 20dbm
3 Signal bandwidth 125KHz
4 Normal mode  SET_A=0, SET_B=0
5 The step frequency 1KHz step setting
6 Erasing times 300K

DC characteristics

Description Min.  Max. Unit
Power voltage 2.1 3.6 V
Working current RX <15mA  TX=95mA@20dbm mA
Sleep current
<4uA microampere
IO Port voltage Vss-0.3 Vdd+0.3 V
Working temperature -30  75

RF characteristics (Unless otherwise stated, the temperature is 25 ℃, and VCC is 3.3V)

Item Characteristics

Standard parameter value

Min. Typi. Max.

1 Application frequency range  240,434.125,930 MHz
2 Receive sensitivity -121 dBm
3 Transmit power +1,-,20 dBm
4 Air transmission rate  1K,-,40k Bps
5 Modulation mode GFSK, FSK

20K frequency deviation

6 Interface rate 1.2,-,20 Kbps
7 Harmonic power -45,-,-35  dBm
8 Communication distance 1500,-,2000 M
9 Sleep power consumption 4 uA
10 Crystal accuracy  10 PPM

Pins Definition: 


No Name Description Remark
1 GND Public Ground
2 VCC 2.1V-3.6V

Input (with weak pull-up), parameter setting A, pull-up resistor 47K

4 RXD Input (with weak pull-up) pull-up resistor 47K
5 TXD Output Output
6 AUX Output Output
7 SET_B Input (very weak pull-up) 10M
8-10 GND Ground or floating, fixed position
9 ANT Antenna output pin

Pins Definition of DL-RTS4463M RF Module

Size and Layout


Typical application

Wireless Data Acquisition, Wireless Data Communication, Wireless Data Monitoring and Transmission, Remote Telemetry, Industrial Control, Security alarm, Queuing machine, Digital signage, Smart city, Smart transportation, Internet of Things, Weather forecast, Location tracking in harsh outdoor environment, Smart Home, Building and Residential Control, Smart City, Logistics Tracking, Wireless Automatic (Water, Electricity, Gas) Meter Reading; Remote control that supports radio frequency (RF) technology 

Product Tags

UART serial module, UART module, UART Transceiver module, Wireless UART module, UART bluetooth module, BLE UART module, UART module supplier, Wireless data transmission, RF Transmitter, RF Receiver, RF Transmit module, RF Receive module, Wireless Transceiver Module, FSK Module, Lora Module, Bluetooth Module