The APL1515-R from ASB Inc. is a Frequency Synthesizer with Frequency 1515.42 GHz, Step Size 500 KHz, Reference Frequency 3 to 5 MHz, Output Power -1 to 1 dBm, Harmonics -30 to -25 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for APL1515-R can be seen below.