IDT'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 V_MODE 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.