MGA-71543-BLKG (BROADCOM LIMITED)

The MGA-71543-BLKG is a 3V Low Noise Amplifier with mitigated bypass switch, 0 to 9dBm adjustable IIP3. It is an easy-to-use GaAs MMIC low noise amplifier (LNA), which is designed for adaptive CDMA and W-CDMA receiver systems. The MGA-71543 is part of the Avago Technologies complete CDMAdvantage RF chipset. The MGA-71543 features a minimum noise figure of 0.8 and 16dB available gain from a single stage, feedback FET amplifier. The input and output are partially matched and only a simple series/shunt inductor match is required to achieve low noise figure and VSWR into 50R. When set into the bypass mode, both input and output are internally matched through a mitigative circuit. This circuit draws no current, yet duplicates the in and out impedance of the LNA. This allows the system user to have minimum mismatch change from LNA to bypass mode, which is very important when the MGA-71543 is used between duplexers and/or filters.