The APL1945.3-R from ASB Inc. is a Frequency Synthesizer with Frequency 1.9453 GHz, Step Size 1000 KHz, Reference Frequency 10 MHz, Output Power 1 to 5 dBm, Harmonics -25 to -20 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for APL1945.3-R can be seen below.