The CVCO55BE-2100-2300 from Crystek Corporation is a Voltage Controlled Oscillator with Frequency 2.1 to 2.3 GHz, Power 1.995 mW, Tuning Sensitivity 60 MHz/V, Tuning Voltage 0.3 to 4.7 V, Pulling DC to 6 MHz. Tags: Surface Mount. More details for CVCO55BE-2100-2300 can be seen below.