
The RA39 is a high-performance ASK superheterodyne wireless receiver module suitable for the 433.92MHz and 315MHz frequency bands. It features high reception sensitivity and strong anti-interference capabilities. Upon receiving wireless signals, the module demodulates the useful data signal and outputs it from the DATA pin. Users can easily develop wireless products by decoding the data with a decoder chip or MCU (the company provides relevant decoder chips and circuits). This module can pass all FCC and CE certification standards, making it an ideal choice for various remote control systems and wireless data transmission systems.
Module Features:
Ultra-small size;
No need for pin alignment, can be directly inserted onto the motherboard; High sensitivity: -112dBm
Operating frequency: 433.92MHz/315MHz; Operating voltage: 2.8-5.5V;
Operating current: 4.6mA; Standby current: 1uA;
Modulation method: ASK/OOK;
Transmission rate: up to 10 kbps; Receive bandwidth: 300 kHz;
Operating temperature: -20°C to +85°C;
Scope of Application:
1) Remote anti-theft system for automobiles;
2) Data Wireless Transmission System;
3) Remote control system;
4) Smart home system;
5) Remote-controlled door opening system;
6) Remote window control system;
7) Remote doorbell;
8) Wireless Security System;
9) PKE System:
Electrical Characteristics: TA=25℃
Parameter | Test conditions | Reference value | Unit | ||
Minimum | Standard | Maximum | |||
Working frequency | 433.92 | 433.82 | 433.92 | 434.02 | MHz |
315 | 314.9 | 315 | 315.1 | MHz | |
Modulation method | ASK(OOK) | ||||
Receiving sensitivity | High-frequency line connection equipment 1KHz, 99% modulation. | -112 | dBm | ||
Transmission rate | 1 | 10 | Kb/s | ||
Maximum input power | -20 | dBm | |||
Mirror image suppression | 20 | 25 | dB | ||
Receiving bandwidth | 200 | 300 | KHz | ||
Reception opening time | 5 | 50 | ms | ||
Power consumption | 4.6 | mA | |||
Working voltage | 2.8 | 5.0 | 5.5 | V | |
Frequency stability | ±20 | PPM | |||
Decoding output high voltage | 0.9xVCC | V | |||
The decoding output is low voltage | 0.1xVCC | V | |||
Working temperature | -20 | +85 | ℃ | ||
Foot position description:


Dimension drawing:

Note: This material and pictures are for reference only. As the technical performance and other parameters of the product will be tested and upgraded, the final shipped product shall prevail.




