868/915 MHz Ultra Low Power RF Transceiver Module with Internal Antenna

  • ◆ FSK and GFSK modulation.
  • ◆ Ultra Low RX Current Consumption : 4.5mA.
  • ◆ High RX sensitivity, -117dBm at 2Kbps on-air data rate.
  • ◆ Programmable data rate from 2Kbps to 150Kbps.
  • ◆ Support 3-wire or 4-wire SPI.
  • ◆ Designed with internal antenna.
  • ◆ Metal cover against EMI interference


The REYAX RYFA689 is based on Amiccom A7129 chip. It is a monolithic low-IF architecture CMOS FSK/GFSK TRX for wireless applications in the ISM bands. This device is especially suitable for battery-powered application.


Item Min. Typical Max. Unit Condition
Supply Voltage 2.2 3.3 3.6 V VDD
Current Consumption   0.3   uA Deep Sleep Mode

(no register retention)

Transmit Mode current   36   mA 12.8dBm
 Receive Mode current   4.5   mA  
Frequency range 808 868/915 928 MHz  
RF Output power     11 dBm  
RF Power Control Range   51   dB  
RF Frequency Accuracy   10   ppm  
RX Sensitivity   -117   dBm @BER=0.1% high gain mode 2kbps (IFBW=50KHz)
Data rate 2   150 Kbps  
High Level Input Voltage 0.8VDD   VDD V VIH
Low Level Input Voltage 0   0.2VDD V VIL
High Level Output Voltage VDD-0.4   VDD V VOH
Low Level Output Voltage 0   0.4 V VOL
Operating Temperature -40 25 +85 ˚C VDD
Weight   6   g  


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RYFA689 PDF 2024-03-22 Preview download


File Name Type Updated Preview Download
A7129 ZIP 2024-03-22 Preview download