The APL1912 from ASB Inc. is a Frequency Synthesizer with Frequency 1.87 to 1.94 GHz, Step Size 100 KHz, Output Power 2 to 6 dBm, Harmonics -25 to -18 dBc, Spurious -72 to -65 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for APL1912 can be seen below.