The LT5520 from Analog Devices is a RF Mixer with RF Frequency 1300 to 2300 MHz, Noise Figure 15 dB, IP3 15.9 dBm, Supply Current 60 mA, Supply Voltage 3.15 to 5.25 V. Tags: Surface Mount, Up-Conversion Mixer. More details for LT5520 can be seen below.