DESCRIPTION
The NE5209 represents a breakthrough in monolithic amplifier design featuring several innovations. This unique design has combined the advantages of a high speed bipolar process with the proven Gilbert architecture.
The NE5209 is a linear broadband RF amplifier whose gain is controlled by a single DC voltage. The amplifier runs off a single 5 volt supply and consumes only 40mA. The amplifier has high impedance (1kâ¦) differential inputs. The output is 50⦠differential. Therefore, the 5209 can simultaneously perform AGC, impedance transformation, and the balun functions.
The dynamic range is excellent over a wide range of gain setting.
Furthermore, the noise performance degrades at a comparatively slow rate as the gain is reduced. This is an important feature when building linear AGC systems.
FEATURES
⢠Gain to 1.5GHz
⢠850MHz bandwidth
⢠High impedance differential input
⢠50⦠differential output
⢠Single 5V power supply
⢠0 - 1V gain control pin
⢠>60dB gain control range at 200MHz
⢠26dB maximum gain differential
⢠Exceptional VCONTROL / VGAIN linearity
⢠7dB noise figure minimum
⢠Full ESD protection
⢠Easily cascadable
APPLICATIONS
⢠Linear AGC systems
⢠Very linear AM modulator
⢠RF balun
⢠Cable TV multi-purpose amplifier
⢠Fiber optic AGC
⢠RADAR
⢠User programmable fixed gain block
⢠Video
⢠Satellite receivers
⢠Cellular communications
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