AISG Integrated Transceiver

Industry's First AISG-Compliant Fully Integrated Transceiver for Base Stations and Tower Equipment

Please check latest availability status for a specific part variant.


The MAX9947 is an AISG-compliant, fully integrated transceiver.

The MAX9947 receiver offers a typical dynamic range of 20dB and integrates a bandpass filter that operates in the 2.176MHz frequency with a narrow 200kHz bandwidth.

The MAX9947 transmitter integrates a bandpass filter that is compliant with the AISG spectrum emission profile. It can modulate OOK signals up to 115.2kbps. The output power can be varied with external resistors from +7dBm to +12dBm to compensate for loss in the external circuitry and cabling.

The MAX9947 also features a direction output to facilitate the RS-485 bus arbitration in tower-mounted equipment.

The MAX9947 is available in a small, 3mm x 3mm 16-pin TQFN and is rated for operation in the -40°C to +105°C temperature range.
MAX9947: Functional Diagram MAX9947: Functional Diagram Enlarge+

Key Features

  • Receiver Wide Input Dynamic Range
    • -15dBm to +5dBm in 50Ω
  • Variable Transmitter Output Level from +7dBm to +12dBm
  • AISG-Compliant Output Emission Profile
  • AutoDirection Output
  • No Need of Microcontrollers to Handle Bus Arbitration in Tower-Mounted Equipment
  • Supports All AISG Data Rates
    • 9.6kbps
    • 38.4kbps
    • 115.2kbps
  • Bandpass Filter Compliant with AISG Protocol Centered Around 2.176MHz
  • 3.0V to 5.5V Voltage Supply
  • Independent Logic Supply
  • Small, 3mm x 3mm 16-Pin TQFN Package


  • Base Stations
  • Tower Equipment

MAX9947EVKIT: Evaluation Kit for the MAX9947
Device   Fab Process   Technology   Sample size   Rejects   FIT at 25°C   FIT at 55°C  

Note : The failure rates are summarized by technology and mapped to the associated material part numbers. The failure rates are highly dependent on the number of units tested.

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