GENERAL DESCRIPTION

The F2255 is a low insertion loss Voltage Variable RF

Attenuator (VVA) designed for a multitude of wireless

and other RF applications. This device covers a broad

frequency range from 1MHz to 3000MHz. In addition

to providing low insertion loss, the F2255 provides

excellent linearity performance over its entire voltage

control and attenuation range.

The F2255 uses 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 either RF1 or

RF2 pins. Control voltage ranges from 0V to 3.6V

using either positive or negative control voltage slope.

FEATURES

• Low Insertion Loss: 1.1dB @ 500MHz

• Typical / Min IIP3: 60dBm / 46dBm

• Typical / Min IIP2: 98dBm / 74dBm

• 33dB Attenuation Range

• Bi-directional RF ports

• +36dBm Input P1dB compression

• VMODE pin allows either positive or negative

control response

• Linear-in-dB attenuation characteristic

• Supply voltage: 3.15V to 5.25V

• VCTRL range: 0V to 3.6V using 5V supply

• +105°C max operating temperature

• 3mm x 3mm, 16-pin QFN package