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High Sensitivity Superheterodyne 433Mhz RF Receiver Module DL-LR45B

DL-LR45B is a 433Mhz high sensitivity superheterodyne RF receiving module. It is a high performance, cost-effective 433Mhz wireless receiving module with spring antenna

  • DL-LR45B
  • 433MHz
  • LR45B RX Chip
  • -25dBm
  • 2.0~5.5V
  • -110~-112dBm
  • 300m
  • 22*9*5mm
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High Sensitivity Superheterodyne 433Mhz RF Receiver Module


DL-LR45B is a 433Mhz high sensitivity superheterodyne RF receiving module. It is a high performance, cost-effective 433Mhz Wireless receiving module with simple peripheral circuit and high stability, strong anti-interference capability! The typical frequencies of applications ranging from 425mhz to 525mhz, and the peripheral components are the least of the similar superheterodyne reception schemes.

This RF receiver module is compliance with European and American radio security regulations, can be directly applied to your wireless products, and a variety of embedded applications, to avoid tedious high-frequency performance debugging, effectively shorten the development cycle. This RF receiver is equipped with an high quality 433Mhz Spring Antenna by defaut, is a real "high frequency antenna AM signal input, digital signal output" wireless receiving module. All RF and IF tuning is done automatically on the chip, which eliminates the manual adjustment process in the development and production, will reduce your R&D costs and enhance the product competitiveness.


Features

● Standard COMS interface control and decoding data output

● Complete monolithic UHF receiver

● Working frequency: 433.92 MHz

● Receive sensitivity: -112dBm

● Transmission rate: 1.0~5 kbps

● Ultra-wide working voltage range: 2.0V-5.5V

● Standby current < 60NA in sleeping state


Download Center

DL-LR45B High Sensitivity ASK Wireless Receiver Module Specification V1.0 do


Technical Parameter

DC characteristics

Description Min. Max. Unit
Supply voltage 2.0 5.5 V
Working current 3.3 4.5 mA
I/O Port voltage Vss-0.3 Vdd+0.3 V
Working temperature
-20  70

DC characteristics of the Module 


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

Parameter Characteristics

Reference Value

Min.  Typ.  Max.

Unit
1 Frequency range 425,433.92,525 MHz
2 Antenna signal input peak value — ,— ,-25 dBm
Receive sensitivity -110 , ,-112 dBm
Data baud rate 1.0 ,1.2 ,5 Kbps

5

LNA Gain 10,— ,12 dB
6 Noise figure (NF) — ,— ,-3.6 dB
7 Frequency range of PLL (Phase Locking Loop) 220 ,— ,550 MHz
8 IF bandwidth (RBW) — ,280 ,— KHz
9 Crystal accuracy 20,— ,10 PPM

High frequency characteristic table of the module

Pin Definitions

2016BH_02

The DL-RXS531 module has four pins, which are defined in the following table

Pin Name Description  Remark
1 ANT Antenna input, 433Mhz Spring Antenna included >0.8mmф
2 VDD Power supply
3 DATA  Data output, connected with decoding chip or MCU
4 DATA Data output, connected with decoding chip or MCU
5 GND Grounding, common ground with the system


Size

2016BH_01

Typical application

Wireless Data Acquisition, Wireless Data Communication, Wireless Data Monitoring and Transmission, Wireless Sensoring; Wireless Remote Control System; Wireless remote control for electronic consumer products; Wireless Alarm & Security Control System; Wireless Sensor Networking, Automatic Data Collection; Industrial Remote Control, Intelligent Control System, Smart Home, Home Automation, Home Appliance Control, Building and Residential Control, Smart City, Logistics Tracking, RFID (radio frequency identification); Telemetry, Automatic Meter Reading system (Water, Electricity, Gas); Remote control that supports radio frequency (RF) technology


Dreamlnk is a high-tech enterprise specializing in ISM band micropower wireless communication technology, providing different kinds of wireless modules and one-stop IoT solutions, including 433/868/915MHz wireless modules, 2.4G wireless Modules, FSK Wireless Transceiver Modules, Antennas, Remote Controls, and customized wireless RF solutions. Welcome to inquire!

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