The PSA3550C from Z-COMM is a Frequency Synthesizer with Frequency 3.54 to 3.55 GHz, Step Size 1000 KHz, Reference Frequency 10 MHz, Output Power 3 to 6 dBm, Spurious -70 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for PSA3550C can be seen below.