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ADL5246

Part Number	ADL5246
Manufacturer	Analog Devices
Description	3GHz Variable Gain LNA
Published	Feb 27, 2016
Detailed Description	Data Sheet 3 GHz Variable Gain LNA with Integrated ½ W Driver Amplifier ADL5246 FEATURES GENERAL DESCRIPTION RF outp...
Datasheet	ADL5246 PDF File

Overview

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.
The ADL5246 can be biased between 3.
3 V and 5 V to trade off between performance and power consumption.
The ADL5246 is fabricated on an advanced GaAs process.
The device is available in a 32-lead, RoHS compliant, 5 mm × 5 mm LFCSP and thermally rated to operate over the −40°C to +105°C temperature range.
FUNCTIONAL BLOCK DIAGRAM RFIN2 VGAIN1 VSW1 VSW1 VGAIN2 RFOUT2 RFIN3 VPOS1 VPOS2 RFOUT1 32 30 15 6 13 16 18 21 11 28 AMP1 RFIN1 2 VVA1 AMP2 VVA2 AMP3 26 RFOUT3 ADL5246 4 5 7 8 9 12 14 ...

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