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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 
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 | ||
| 3 | Receive sensitivity | -110 ,— ,-112 | dBm | ||
| 4 | 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
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
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!
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
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 | ||
| 3 | Receive sensitivity | -110 ,— ,-112 | dBm | ||
| 4 | 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
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
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!
