The SFS1875C-LF from Z-COMM is a Frequency Synthesizer with Frequency 1.875 GHz, Reference Frequency 156.25 MHz, Output Power 1 to 5 dBm, Spurious -70 dBc, Supply Voltage 3 V. Tags: Surface Mount, PLL Frequency Synthesizer. More details for SFS1875C-LF can be seen below.