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FSK Wireless Transceiver Module with Silicon Labs si4432 Chip

FSK Transceiver module with Si4432 chip, long-distance (1.8km) wireless transceiver module with receiving sensitivity of -121dbm.

  • DL-RTS4432
  • 433M
  • Si4432
  • -45~-35dBm
  • -0.3~3V
  • -110dBm
  • 1800m
  • 15*12.5*2mm
Quantity:

High-performance FSK Transceiver Module with Si4432 chip


Module introduction

DL-RTS4432 was designed base on Silicon Labs' Si4432 wireless transceiver chip. It is a compact, low-power, long-distance wireless transceiver module. The chip launched by Silicon Labs is mainly set to 315MHz, 433MHz, 868MHz, 915MHz and other special frequency bands of the national networks. The sensitivity can reach -121dbm, the maximum transmission rate can reach 128Kbps, and the output power can range from +1dbm to + 20dbm through the register configuration.

This wireless transceiver module integrates all RF-related functions. Users do not need to have a deep understanding of RF circuit design; they can use this module to easily develop wireless products with stable performance and high reliability, shortening the product development cycle.

DL-RTS4432 RF module adopts single-chip architecture, and the periphery adopts high-precision crystal, high-Q Murata inductor, small volume but high-capacity filter capacitor. All SMD components are used, and the interface is encapsulated with standard pitch stamps, which is conducive to the development of compact systems and the application of mass placement.


Features

● 1200m transmission distance (1200bps)

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

● Operating voltage: 1.8V-3.6V

● Low current loss in SHUTDOWN mode

● Efficient 4 - line SPI interface

● Separate 64-byte RX FIFO and TX FIFO

● Support WOR wireless wake-up function for portable devices


Applications

● Wireless sensor;

● Home automation;

● Automated data collection;

● Industrial remote control, telemetry;

● Data monitoring and transmission;

● Home Appliance Control;

● Security, alarm control;


Download Center

DL-RTS4432 Specification V1.1 do


Technical Parameter

DC characteristics

Description Min. Max.  Unit
Supply voltage 1.8  3.6  V
Working current RX <14mA TX=75mA@20dbm mA
Standby current
<1uA  mA
IO port voltage Vss-0.3 Vdd+0.3 V
Working temperature -40  85

DC characteristics of the Module

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

No Characteristics  Index parameter range  Unit


Min. Typi. Max.
1

Frequency range (customized by

industry)

240 433.92 930 MHz
2 Frequency interval
100K
Hz
3  Transmit power -20
20 dBm
4 Receive sensitivity
-121
dBm
5 Modulation GFSK 2-FSK OOK MSK
6  Transmission rate 1.2
128 Kbps
7 Harmonic power -45 — — -35 dBm
8  Communication distance  800
1200 M
9 OOK Modulation mode, sensitivity
-110
dBm
10 OOK modulation mode, rate 

40 Kbps
11 Standby power consumption 

0.9 MHz
12 Crystal accuracy
10
PPM

High frequency characteristic table of the module


Pins Definition

4432_01

Pin Name Description Remark
1 VDD

Antenna interface, 50Ω standard impedance

RF VDD
2

GND

Grounding, common ground with the system


3/4

NC

Free pins, not connected to any hardware


5

VCC

Power supply, DC2.0~3.6V

Configuration register

6

GPIO_0

Implement different functional applications,

and configure AMP transceiver capabilities


7

NC

Free pins, not connected to any hardware


8 MISO

Grounding, common ground with the system


9

GND

0~VDD Digital input
10

SDO

SPI date output, MISO


11

SDI

SPI data inputMOSI


12

SCLK

SCLK input


13

NSEL

SPI chip select input terminal 


14

NIRQ

For MCU Data Transmit/Receive Interrupt Response Processing

I/O

15

SDN

SDN=0 means working, SDN=1 entering low power state

Register value missing

Size

4432_02

Dreamlnk is a high-tech enterprise specializing in ISM band micropower wireless communication technology, providing various RF modules and one-stop IoT solutions, including 433/868/915MHz wireless modules, 2.4G RF Modules, FSK Transceiver module, Bluetooth modules, LoRa modules, UART module, etc. Welcome to inquire!

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