F2270 Voltage Variable RF Attenuator and Evaluation Board

IDT's F2270 is a low insertion loss VVA covering a broad frequency range

Image of IDT's F2270 Voltage Variable RF Attenuator and Evaluation BoardIDT's F2270 is a low insertion loss voltage variable RF attenuator (VVA) covering a broad frequency range from 5 MHz to 3000 MHz. In addition to providing low insertion loss, the F2270 provides excellent linearity performance over its entire voltage control and attenuation range. The device uses a single positive supply voltage of 3.15 V to 5.5 V. Other features include the VMODE pin allowing either positive or negative voltage control slope versus attenuation and multi-directional operation, meaning the RF input can be applied to either RF1 or RF2 pins. Control voltage ranges from 0 V to 5 V using either positive or negative control voltage slope.

The F2270EVBI is a fully populated evaluation board which allows the customer to easily evaluate the F2270 voltage variable attenuator. Attenuation slope may be set to either positive or negative attenuation slope using the on-board jumper pins.

Features
  • Voltage variable RF attenuator:
    • Low insertion loss: 1.1 dB at 300 MHz
    • Typical / minimum IIP3 > 50 MHz: 62 dBm / 46 dBm
    • Typical / minimum IIP2 > 50 MHz: 98 dBm / 77 dBm
    • Up to 35 dB attenuation range
    • Bi-directional RF ports
    • +36 dBm input P1 dB compression
    • VMODE pin allows either positive or negative attenuation control response
    • Linear-in-dB attenuation characteristic > 50 MHz
    • Supply voltage: 3.15 V to 5.50 V
    • VCTRL range: 0 V to 5.0 V
    • +105°C maximum operating temperature
    • 3 mm x 3 mm, 16-QFN package
  • Evaluation Board:
    • Type F-connectors for "thru" calibration and RF1 and RF2
    • Power supply VCC (supply voltage) and VCTRL (control voltage) connected through SMA connectors
    • Jumper connector J7 allows selection of either positive or negative attenuation slope by setting the VMODE pin to either ground or VHIGH

Voltage Variable RF Attenuator

ImageManufacturer Part NumberDescriptionPart StatusFrequency RangeImpedanceAvailable QuantityView Details
F2270NLGK datasheet linkRF ATTENUATOR 35DB 75OHM 16VFQFNF2270NLGKRF ATTENUATOR 35DB 75OHM 16VFQFNActive5MHz ~ 3GHz75 Ohms705 - Immediate
F2270NLGK product page link

Evaluation Board

ImageManufacturer Part NumberDescriptionAvailable QuantityView Details
F2270EVBI datasheet linkEVALUATION BOARDF2270EVBIEVALUATION BOARD3 - Immediate
F2270EVBI product page link
Published: 2017-09-27