The JTOS-1950 from Mini Circuits is a Voltage Controlled Oscillator with Frequency 1550 to 1950 MHz, Power 5.012 mW, Tuning Sensitivity 23 MHz/V, Tuning Voltage 0.5 to 20 V, Pulling 7 MHz. Tags: Surface Mount. More details for JTOS-1950 can be seen below.