The APLR1984 from ASB Inc. is a Frequency Synthesizer with Frequency 1.945 to 2.23 GHz, Step Size 50 KHz, Reference Frequency 10 MHz, Output Power 1 to 3 dBm, Harmonics -20 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for APLR1984 can be seen below.