The CVCO55CW-1200-2100 from Crystek Corporation is a Voltage Controlled Oscillator with Frequency 1.2 to 2.1 GHz, Power 8.913 mW, Tuning Sensitivity 45 MHz/V, Tuning Voltage 0.5 to 25 V, Pulling DC to 25 MHz. Tags: Surface Mount. More details for CVCO55CW-1200-2100 can be seen below.