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The LT5557 from Linear Technology is a high linearity, 3.3 V, downconverting active RF mixer that elevates receiver dynamic range performance while extending bandwidth capability to cover 3G and WiMAX base station frequencies to 3.8 GHz. The LT5557 offers 24.7 dBm IIP3, noise figure of 11.7 dB and 2.9 dB of gain at 1.95 GHz. Its performance remains robust at WiMAX frequencies with 23.5 dBm IIP3, and 1.7 dB of gain at 3.6 GHz.