F2250 Digital Step Attenuators Renesas Electronics F2250 Digital Step Attenuators are low insertion loss Voltage Variable RF Attenuators (VVA) designed for many wireless and other RF applications. The F2250 covers a broad frequency range from 50MHz to 6000MHz. In addition to low insertion loss, Renesas F2250 provides excellent linearity performance over its entire voltage control and attenuation range. These attenuators use a single positive supply voltage of 3.15V to 5.25V. Other features include the VMODE pin allowing either positive or negative voltage control slope vs. attenuation and multi-directional operation, meaning the RF input can be applied to RF1 or RF2 pins. Control voltage ranges from 0V to 2.8V using either positive or negative control voltage slope.