Products

WF531RA 300~450MHz Rx Receiver Wireless RF Chip IC

  • Frequency range: 300MHz – 440MHz
  • High receiving sensitivity (2kbps, BER 10E-2)
    -113dBm @ 315MHz
    -113dBm @ 433.92MHz
  • Low power consumption
    5.0mA/3.3V @ 315MHz
    5.0mA/3.3V @ 433.92MHz
    0.01uA/3.3V @ Shut Down Mode
  • Low startup time: 3 ms
  • Data rate: ≤ 10kbps
  • Wide operating voltage: DC 2.0V~ 5.5V
  • Built-in image suppression, good anti-interference performance
  • Receive bandwidth: ±320KHz
  • High ESD protection standard: ±8KV HBM
  • Independent operation, no external MCU control required
  • No register configuration required
  • RoHS compliant
  • SOP8 package

Introduction

WF531RA is a highly integrated, low-power single-chip ASK/OOK RF receiver chip. The high-frequency signal receiving function is fully integrated in the chip to achieve the most reliable reception effect with the least peripheral devices and the lowest cost. Therefore, it is a single-chip receiving device with “wireless high-frequency modulation signal input and digital demodulation signal output” in the true sense.
WF531RA is a SOP8 package with a normal operating voltage range of 2.0-5.5V, a normal operating current of 5mA, a start-up time of 3ms, and a maximum receiving sensitivity of -113dBm, which is very suitable for various low-power devices. All RF and IF tuning are automatically completed in the chip, and the manual adjustment process is omitted in development and production, thereby reducing costs and accelerating product launch.

Applications

◼Low-cost consumer electronics applications, such as remote fans, remote lights, remote doors, remote toys, etc.
◼Remote key entry system (RKE)
◼Smart home, building monitoring automation
◼Industrial detection and control system
◼Long-range RFID

PACKAGE INFORMATION

8-Pin SOP Package

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