QA011

Single output with Decoding

Wireless Remote Control RF Receiver Chip

Features

1. Including RF receiver chip, commonly used in data transmission and control system

2. Can operate independently, without external MCU control

3. Compatible with fixed code coding chips: PT2262, EV1527,PT2264, SC1527, HS1527, RT1527, etc.

4. Automatic identification of coding chip type

5. Momentary, Toggle and Latched functions can be converted at will, without jumpers, long-term stability

6..Support PT2262 and EV1527 remote control mixed learning, no need to manually select

7. Code-to-code learning, no manual coding required

8. Built-in memory, safe and reliable

9. Ultra-wide working voltage

10. Adopt dense-pin SSOP16 package, small size, more suitable

for the application of small volume products

Application

• Wireless remote control switch
• Remote motor control
• security system
• Access control system
• Building community automation and fire protection
• Street light control system
• Smart Home Controller

 

Performance parameters

ASK/OOK RF reception

Operating voltage: 2.0V - 5.0V

Frequency range: 300MHz - 450MHz

Receive sensitivity: -111dBm

Receive power consumption: 4.5-6.6mA

Standard CMOS interface control and decode data output

Description

Application circuit

This application circuit uses the MOSFET as the control device, and uses the RF signal to control the on-off of the negative electrode of the circuit. The LED is the learning indicator of the RF remote control, clearing the data indicator of the RF remote control, the control mode setting indicator, and the decoding valid indicator of the receiving module; S1 is the button, as the control mode setting, the setting button of the RF remote control learning. Application example: When the QA011 chip receives the data of the remote control that has been learned, the LED light flashes, the PB1 pin will output a high level to control the conduction of the MOSFET.

Crystal oscillator can be provided by QIACHIP

Function description and mode setting

Clear code reset function: After pressing the learning button of the

module for 8 times, the MOSFET that controls the negative

electrode is turned off, and the indicator light flashes 6 times. After

clearing all stored RF remote control key values, the indicator light

of the module goes out.

Momentary mode: press the learning button of the module once,

and the LED indicator flashes once. When the LED indicator is on,

press the remote control button to be matched, and the LED

indicator of the module flashes continuously for 3 times, indicating

that the pairing is completed.

Then, press and hold the matched remote control button, the

MOSFET controlling the negative pole on the module will be turned

on, release the remote control button, and the MOSFET controlling

the negative pole on the module will be turned off.

Toggle mode: press the learning button of the module twice, and

the LED indicator flashes twice. After the LED indicator is on, press

the remote control button to be matched, and the LED indicator of

the module flashes continuously for 3 times, indicating that the

matching is successful.

Then, press the matched remote control button to turn on the MOSFET controlling the negative pole on the module. Press the same matched remote control button again to turn off the MOSFET controlling the negative pole on the module.

Latching mode: long press the module learning button for 3 times,

and the LED indicator flashes for 3 times. When the LED indicator

light is on, press the key (A) of the remote control to match. After the

LED indicator light flashes for 3 times, it will continue to be on, and

then press the key (B) of the remote control to match. The LED

indicator flashes for 3 times and then goes out, indicating that the

matching is successful.

Then, press the remote control button (A), the MOSFET controlling

the negative pole on the module will be turned on, and then press

the remote control button (A), the MOSFET state will not change.

Press the remote control button (B), the MOSFET controlling the

negative pole on the module will be turned off, and then press the

remote control button (B), the MOSFET state will not change.

Closing function with 5S delay: press the module learning button

4 times, and the LED indicator flashes 4 times. After the LED

indicator is on, press the remote control button for matching, and the

module LED indicator flashes continuously for 3 times, indicating

that the matching is successful.

Then, press the matched remote control button, and the MOSFET

controlling the negative pole on the module will be turned on. After

a delay of 5 seconds, the MOSFET controlling the negative pole on

the module will be turned off.

Closing function with 10S delay: press the module learning button

5 times, and the LED indicator flashes 5 times. After the LED

indicator is on, press the remote control button for matching, and the

module LED indicator flashes continuously for 3 times, indicating

that the matching is successful.

Then, press the matched remote control button, and the MOSFET

controlling the negative pole on the module will be turned on. After

a delay of 10 seconds, the MOSFET controlling the negative pole

on the module will be turned off.

Closing function with 15S delay: press the module learning button

6 times, and the LED indicator flashes 6 times. After the LED

indicator is on, press the remote control button for matching, and the

module LED indicator flashes continuously for 3 times, indicating

that the matching is successful.

Then, press the matched remote control button, and the MOSFET

controlling the negative pole on the module will be turned on. After

a delay of 15 seconds, the MOSFET controlling the negative pole

on the module will be turned off.

Closing function with 20S delay: press the module learning button

7 times, and the LED indicator flashes 7 times. After the LED

indicator is on, press the remote control button for matching, and the

module LED indicator flashes continuously for 3 times, indicating

that the matching is successful.

Then, press the matched remote control button, and the MOSFET

controlling the negative pole on the module will be turned on. After

a delay of 20 seconds, the MOSFET controlling the negative pole

on the module will be turned off.

 

Package

Precautions:

      RF devices are voltage sensitive devices. If the power supply is unstable

or the ripple is large, add a filter to the power input to ensure that the power supply voltage does not exceed the maximum operating voltage of the product.

      This device is an electrostatic sensitive device, anti-static measures must be used in transportation and use. When patching, make sure that the temperature does not exceed 245 degrees

       It is recommended not to use a rubber-covered spring antenna in

application to ensure a better product yield. The product description is subject to change without notice.

 

Antenna

General application

For general applications, antennas can be directly adapted to

market specifications as follows:

433M antenna

Wire length at welded end is 10mm; The total length of antenna

wire straightening is 170mm; Winding turns are 9 turns.

Click to buy antenna