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Quick Details

  • Brand Name: DL
  • Model Number: DL-R02BF
  • Use: Universal
  • Place of Origin: Guangdong, China (Mainland)
  • Operating principle: Super regeneration
  • Modulate mode: OOK/ASK
  • Frequency range: 250MHz-450MHz
  • Decode: Fixed code
  • Output Channels: 4 routes
  • bandwidth: 2MHZ
  • Price: Factory price
  • Packing: PVC and carton packing
  • Delivery: Low freight cost by DHL/UPS/FedEx/TNT/EMS

Packaging & Delivery

Packaging Details: PVC box & carton packing
Delivery Detail: 7-15 days or negotiable

Specifications

1.2272 decode-M4/L4/T4
2.-105dBm sensitivity
3.2Mhz bandwidth
4.4 routes data output
5.super regeneration

Model No.: DL-R02BF

Description: Wireless super regeneration rf ask receiver module

 

Product Detail:

DL-R02BF high frequency receiving module is adopting decoding IC that could be use directly, imported SMD components, 6.5G high-frequency triode and high Q value inductance, which make this module have the features of stable performance, high sensitivity, low power consumption, high quality and competitive price. This module is widely applied in anti-theft system and remote control system.

 

Application:

a. 4 bits digital wireless receiving, anti-theft alarm signal receiving;

b. Industrial remote control, remote measurement and remote sensing;

c. Various remote controls for home-appliances.

 

Technical Specifications:

Operating voltage:

5.0V±0.5V

Operating current:

≤4.5mA (5.0VDC)

Operating principle:

super regeneration

Modulate mode:

OOK/ASK

Frequency range:

250MHz-450MHz

Bandwidth:

2MHz (315MHz, test when the sensitivity decline to 3dBm)

Sensitivity:

better than -105dBm (50Ω)

 Rate:

<5Kbps (at 315MHz at -95dBm)

Decoding format:

PT2272, HS2272, AX5327

Output signal:

TTL electric level, 4 route control output; output form with Latch and unlatch;

Learning quantity:

20 remotes

Antenna length:

24cm (315MHz), 18cm (433.92MHz)

 

Size and Pin definition

                                                 

                                               

 

Notes for usage

  a. Pls use soft lead wire or other hard metal (like telescopic antenna), It can not be either too long or too short, or it will affect the receiving distance. The antenna should be stretched as straight as possible if it is using soft lead wire, and as far as possible from the metal objects.

  b. The power voltage needs to be stable with low ripple factor and multilevel wave filtering (such as adding magnetic ball, inductance, capacitance etc.)

  c. We suggest the clock frequency of the MCU should be lower than 4MHZ if used together with MCU, the crystal should be as far as possible to the RF receiving module, or the higher harmonic of the crystal will affect the communication distance.

  d. Please pay attention to the conformity of rate and code format between encoding IC and decoding IC, otherwise the inconformity will affect communication distance or even break off the communication. 

Lead time: 

   1. Samples: 3-5 working days after receive the payment;

   2. Order: 10-15 working days after receive the payment;

                                   

Shipment: 

 

 

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