ADL5246

Data Sheet 3 GHz Variable Gain LNA with Integrated ½ W Driver Amplifier ADL5246 FEATURES GENERAL DESCRIPTION RF output frequency range: 0.6 GHz to 3 GHz Output IP3: 37 dBm at 2.2 GHz Output P1dB: 28 dBm at 2.2 GHz Noise figure of input amplifier: 1 dB at 2.2 GHz Maximum gain: 31.5 dB at 2.2 GHz Voltage variable attenuation range: 45 dB 0 V to 3.3 V attenuation control range Integrated bypass switch for low noise VGA Matched 50 Ω input stage 3.3 V to 5 V single supply 32-lead, 5 mm × 5 mm LFCSP package APPLICATIONS Multistandard radio receivers Point to point Rx and Tx Instrumentation Military and aerospace The ADL5246 is a high performance, low noise variable gain amplifier (VGA) optimized for multistandard base station receivers and point to point receive (Rx) and transmit (Tx) applications. The low noise figure and excellent linearity performance allow the device to be used in a variety of applications. The device consists of a low noise amplifier, a high linearity VGA, and a ½ W output driver stage. The variable attenuator networks are optimized to provide high linearity performance over the 45 dB gain control range. Gain is set using a unipolar control voltage from 0 V to 3.3 V. The output stage of the ADL5246 is an externally tuned ½ W driver amplifier, which allows the device to be optimized anywhere between the 0.6 GHz to 3 GHz range, with an average tuning bandwidth of 200 MHz wide. An external filter can be used between the VGA and the final driver amplifier. Th...