The APL2290-R/T from ASB Inc. is a Frequency Synthesizer with Frequency 2.29 GHz, Reference Frequency 10 MHz, Output Power 2 to 4 dBm, Harmonics -25 to -20 dBc, Spurious -72 to -68 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for APL2290-R/T can be seen below.