The SAC3507 from SuperApex Corporation is a RF Mixer with LO Frequency 900 MHz to 3 GHz, IF Frequency DC to 800 MHz, Conversion Loss 7 to 8 dB, LO/RF Isolation 40 dB, LO/IF Isolation 30 dB. Tags: Die, Double Balanced Mixer. More details for SAC3507 can be seen below.