Super regeneration few components RF receiver module

RF receiver module 1. Fixed code 2272 2. PCB itself has color circle inductance and hollow inductance 3. Super regeneration

Model No.: DL-R02EF

Description: Super regeneration few components RF receiver module

Product Detail:

DL-R02EF is a widely used super regeneration receiving module, its design principle and pin output is the same as DL-R02BF, but the PCB itself has color circle inductance and hollow inductance, with less components. It has the features of more stable performance, higher sensitivity, low power consumption, high quality and competitive price. It has decode IC 2272, can be used directly. This module is widely applied in various remote control system.

 

1. 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.

 

2. Technical Specifications:

Operating voltage:	5.0V±0.5V
Operating current:	≤2mA (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)

 

3. Size and Pin definition

  

4. 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.

Garantee: 13 months !

Lead time: 

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

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

                                   

Shipment: 

We deliver by EMS, DHL, UPS, TNT, FedEx, Hongkong Post, Singapore Post and so on at the first reasonable time.

*EMS usually takes about 6-13 days, more or less. For far region or custom reason, it will take a little longer time, pls be patient;

*DHL, UPS, TNE, FedEx usually takes about 4-6 days, For far region or custom reason, it will take a little longer time, pls be patient;

*Hong kong post, Singapore post usually takes about 10-15 days, For far region or custom reason, it will take a little longer time, pls be patient;

*We usually show very low price, so the buyer can avoid paying the tax. However, the tax is determined by the custom of the destination, not by us, different countries have different tax rate, so if any tax, then the buyer should undertake it. If you have any special requrement, pls let us know before the order.

*We will not responsible for any loss due to the buyer's reason, including"refuse to sign the package" or "refuse to pay the tax" or "destination country post reason". We are in charge of delivering the goods in good condition, once the express carrier sign the airway bill, we will not be in charge of any responsibility.

 

Super regeneration few components RF receiver module