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RF Power Amplifier

CMX901


Features:

  • Wide operating frequency range 130MHz to 950MHz
  • Typical output power:
    • 2.5W operating at 160MHz
    • 1.8W operating at 435MHz
    • 1.5W operating at 915MHz
  • High power gain up to 40dB
  • High output power 31.5dBm 1.5W at 4.0V supply
  • High power added efficiency up to 60% at VHF
  • Single polarity supply voltage 2.5V to 6V
  • Small 28 pin WQFN package

Applications:

  • Wireless data communications FSK, FFSK/MSK, GFSK/GMSK, Multi-level FSK
  • Marine AIS Class-B and Marine AIS-SART
  • RFID readers/writers
  • Automatic meter reading (AMR)
  • Wireless sensor networks Mesh/Ad hoc systems
  • Remote control and sensing systems
  • Commercial and consumer communications

Supply Requirement:

  • 2.5 to 6 V power supply

The CMX901 is a three stage high-gain and high efficiency RF power amplifier. The device is ideally suited for use in VHF and UHF frequency bands up to 950MHz.

The first and second stages of the amplifier operate in a class-A and class-AB mode respectively, and the third stage operates in a class-C mode for maximum efficiency.

The input and output matched circuits are implemented via external components and therefore can be adjusted to obtain maximum power and efficiency at the desired operating frequency. The CMX901 is available in a small footprint 5mm x 5mm low thermal resistance 28-pin WQFN package.

CMX901_RF_Power_Amplifier_Diagram

Design Support Information

 
EV9011 Evaluation Kit for CMX901
 
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