The SFS1200F-LF from Z-COMM is a Frequency Synthesizer with Frequency 1200 MHz, Reference Frequency 10 MHz, Output Power -1 to 3 dBm, Harmonics -13 dBc, Spurious -70 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for SFS1200F-LF can be seen below.