GENERAL DESCRIPTION

The ADL5330 is a high performance, voltage controlled, variable gain amplifier (VGA)/attenuator for use in applications with frequencies up to 3 GHz. The balanced structure of the signal path minimizes distortion while it also reduces the risk of spurious feedforward at low gains and high frequencies caused by parasitic coupling. While operation between a balanced source and load is recommended, a single sided input is internally converted to differential form.

FEATURES

Voltage controlled amplifier/attenuator

Operating frequency 10 MHz to 3 GHz

Optimized for controlling output power

High linearity: OIP3 31 dBm at 900 MHz

Output noise floor: −150 dBm/Hz at 900 MHz

50 Ω input and output impedances

Single-ended or differential operation

Wide gain control range: −34 dB to +22 dB at 900 MHz

Linear in dB gain control function, 20 mV/dB

Single-supply 4.75 V to 5.25 V

APPLICATIONS

Transmit and receive power control at RF and IF