The SFS4800C-LF from Z-COMM is a Frequency Synthesizer with Frequency 4.8 GHz, Reference Frequency 10 MHz, Output Power -1 to 5 dBm, Spurious -70 dBc, Supply Voltage 3 V. Tags: Surface Mount, PLL Frequency Synthesizer. More details for SFS4800C-LF can be seen below.