RF Receiving Module RXS531R
Product Description
Single-chip Wireless ASK/OOK (ON-OFF Keying) RF Receiving Module
DL-RXS531R is the new generation single-chip wireless ASK/OOK (ON-OFF Keying) receiving module,which is mainly used in the field of wireless radio frequency remote control. Compared with previous generation products, DL-RXS531 has higher sensitivity, which can reach -109dBm in 433MHz application environment, greatly increasing the receiving distance. Meanwhile, this model has a higher integration,with high frequency signal reception functions all on chip, to achieve the most reliable receiving results, with the least peripherals and the lowest cost.
DL-RXS531 is a real "high frequency antenna AM signal input, digital signal output" receiving module with French imported single chip design. 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.
This RF module is compact in shape and less than 1cm in width, is the best choice for small space applications. This module has a preset CE enabled control pin, which can be well used in power saving mode, to achieve a better average power consumption. It also has super anti-interference ability.
Features
● Standard COMS interface control and decoding data output
● Complete monolithic UHF receiver, frequency range 300-450 MHz
● Receive sensitivity: -109dBm (315MHz), -109dBm (433MHz)
● Transmission rate: 2.5 kbps (SWP), 10 kbps (FIXED) auto tuning
● No need for manual adjustment, no need for external filters and inductors
● Preset CE enabled control pin to shift sleep / wake-up (Low level effective).
● Common frequencies: 433M, 315M, 390M, adopt different local oscillation crystals;
● 4.5mA (315MHz, full operation); 0.5uA (shutdown mode); 370uA at “CE = High” (315MHz, 10:1 duty ratio)
● WOR function is used to enable external decoder board and MCU, RF antenna radiation is very low
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Technical Parameter
DC characteristics
| Description | Min. | Max. | Unit |
| Supply voltage | 3.6 | 5.5 | V |
| Working current | 4.5 | 7.0 | mA |
| Standby current | ＜0.5uA | uA | |
| I/O Port voltage | Vss-0.3 | Vdd+0.3 | V |
| Working temperature | -20 | 70 | ℃ |
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 | 300，315/433 ，450 | MHz | ||
| 2 | Antenna signal input peak value | — ,— ,10 | dBm | ||
| 3 | Receive sensitivity | — ,-109 ,— | dBm | ||
| 4 | Data baud rate | 0.6 ,1.2 ,10 | Kbps | ||
5 | LNA Gain | 10,— ,12 | dB | ||
| 6 | CE enable wake up time | 7,— ,8.5 | mS | ||
| 7 | Noise figure (NF) | — ,— ,-3.6 | dB | ||
| 8 | PLL frequency range | 220 ,— ,450 | MHz | ||
| 9 | IF bandwidth (RBW) | — ,300 ,— | KHz | ||
| 10 | Common use crystal frequency | DL-S31 | MHz | ||
| 11 | Standby power consumption | — ,0.9 ,— | uA | ||
| 12 | 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 | VCC | Power supply, DC5.0V is recommended | ＞3.6V |
| 2 | CE/L | Module enabled end; low level effective | |
| 3 | DATA | Data output, connected with decoding chip or MCU | |
| 4 | GND | Grounding, common ground with the system | |
| 5 | ANT | Antenna input, single core copper wire is recommended | ＞0.8mmф |
Size
Typical application
Wireless Data Acquisition, Wireless Data Communication, Wireless Data Monitoring and Transmission, Wireless Sensoring; Wireless Remote Control System; Wireless Game Controller, Remote Control Toys; Wireless remote control for electronic consumer products; Wireless Alarm & Security Control System; Wireless Sensor Networking; Industrial Remote Control, Intelligent Control System, Home Automation, Home Appliance Control, Building and Residential (smart home) Control, Smart City, Logistics Tracking, Warehouse Patrols, RFID (radio frequency identification); Telemetry, Automatic Meter Reading (Water, Electricity, Gas) System; Remote LED, Remote Curtain; Remote control that supports radio frequency (RF) technology
Product Tags
ASK RF module, RF modules, RF Receiver, RF Receive module, Wireless Transceiver Module, ASK Module, RF Receiving module, 433MHz RF Module, 433MHz Wireless Receiving Module