The FSW1545-50 from Synergy Microwave Corporation is a Frequency Synthesizer with Frequency 150 to 450 MHz, Step Size 500 KHz, Reference Frequency 10 MHz, Supply Voltage 5 to 25 V, Current 5 to 35 mA. Tags: Surface Mount, PLL Frequency Synthesizer. More details for FSW1545-50 can be seen below.