The CVCO55CL-1090-1235 from Crystek Corporation is a Voltage Controlled Oscillator with Frequency 1.09 to 1.235 GHz, Power 5.012 mW, Tuning Sensitivity 40 MHz/V, Tuning Voltage 0 to 5 V, Pulling DC to 1 MHz. Tags: Surface Mount. More details for CVCO55CL-1090-1235 can be seen below.