The LT5527 from Analog Devices is a RF Mixer with RF Frequency 400 to 3700 MHz, Conversion Gain 2.3 dB, Noise Figure 12.5 dB, IP3 23.5 dBm, Supply Voltage 4.5 to 5.25 V. Tags: Surface Mount, Down-Conversion Mixer. More details for LT5527 can be seen below.