The PSA2275AF-LF from Z-COMM is a Frequency Synthesizer with Frequency 2.07 to 2.47 GHz, Step Size 1000 KHz, Reference Frequency 10 MHz, Output Power -3 to 3 dBm, Spurious -65 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for PSA2275AF-LF can be seen below.