GENERAL DESCRIPTION
The ADL5331 is a high performance, voltage-controlled variable gain amplifier/attenuator for use in applications with frequencies up to 1.2 GHz. The balanced structure of the signal path maximizes signal swing, eliminates common-mode noise and minimizes distortion while it also reduces the risk of spurious feed-forward at low gains and high frequencies caused by parasitic coupling.

FEATURES
   Voltage-controlled amplifier/attenuator
   Operating frequency: 1 MHz to 1.2 GHz
   Optimized for controlling output power
   High linearity: OIP3 47 dBm @ 100 MHz
   Output noise floor: −149 dBm/Hz @ maximum gain
   Input impedance: 50 Ω
   Output impedance: 20 Ω
   Wide gain-control range: 30 dB
   Linear-in-dB gain control function: 40 mV/dB
   Single-supply voltage: 4.75 V to 5.25 V

APPLICATIONS
   Transmit and receive power control at RF and IF
   CATV distribution