Low noise amplifier for 2.35GHz mobile data receiver (REP004)
Abstract: In wireless data applications, the MAX2644 "Super LNA" is tuned in the 2.35GHz band. Tune this application circuit design to achieve the best noise and gain performance. MAX2644 can adjust IIP3 to change continuously, which is very attractive to allow the amplifier gain and noise to achieve optimization independent of linearity.
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More information: Wireless product web application technical support
Objective: To develop a low-current, low-cost, high-performance low-noise amplifier circuit for LEO satellite mobile receivers through general tuning and circuit matching.
In wireless data applications, the MAX2644 "Super LNA" is tuned in the 2.35GHz band. Tune this application circuit design to achieve the best noise and gain performance. MAX2644 can adjust IIP3 to change continuously, which is very attractive to allow the amplifier gain and noise to achieve optimization independent of linearity.
The MAX2644 is a low-noise amplifier with a gain of 15dB. Its variable IIP3 is up to + 4dBm, and the NF at 2.45GHz is 1.8dB. It has a 50Ω on-chip output matching, using a simple input matching topology to achieve the best noise figure. MAX2644 can be used in a variety of applications in the 2GHz to 2.5GHz band, including LEO satellite receivers, WCDMA mobile phone front-ends, and wireless LAN receivers. MAX2644 is available in a small SC-70 package.
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