The PLL1919BQ-LN1-1890.25MHz-A from Dynamic Engineers is a Frequency Synthesizer with Frequency 1890.25 MHz, Step Size 50 KHz, Reference Frequency 5 to 100 MHz, Output Power 3 to 7 dBm, Harmonics -28 to -20 dBc. Tags: Surface Mount, PLL Frequency Synthesizer. More details for PLL1919BQ-LN1-1890.25MHz-A can be seen below.