The R 773 from Qualcomm is a SAW Resonator with Frequency 314.875 / 315.125 MHz, Centre Frequency 314.875 / 315.125 MHz, Insertion Loss 1.3 to 1.6 dB, Capacitance 3.2 pF, Quality Factor Unloaded 9600 to 14200. Tags: Surface Mount, SAW Resonator. More details for R 773 can be seen below.