The F1977EVBI is a fully populated evaluation board which allows the customer to easily evaluate the device. Attenuation may be set using either the parallel control input or its serial control input (through external connection and control). A dip switch on the evaluation board allows one to set the attenuation state without off-board connections to the control inputs.

The F1977EVS is a complete hardware and software solution that allows customers to digitally control the device with the USB output on a computer.  The kit includes the F1977EVBI board, as well as a USB Digital Control Board and interface cables. The software, guides, and instructional videos are available for download/viewing on the product web page.


  • F1977EVBI (Evaluation Board)
    • SMA connectors for RF input and RF output, and throu calibration
    • Power supply connected either through SMA connector or header pins
    • Attenuator settable with DIP switch, serial port interface (SPI) or parallel control interface
  • F1977EVS (Evaluation Solution)
    • Includes product evaluation board described above
    • Includes Digital Control Board and all necessary cables
    • Interfaces with the Digital Control Software – can be downloaded from the product web page


Title language Type Format File Size Date
star F1977 Datasheet REV1 Datasheet PDF 10.67 MB
AN-896 RF Products EVS Digital Control Software Guide Application Note PDF 3.17 MB


Title language Type Format File Size Date
RF Digital Control Software Installer Software & Tools - Software ZIP 169.81 MB

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