The CVCO55BH-5256-5356 from Crystek Corporation is a Voltage Controlled Oscillator with Frequency 5.256 to 5.356 GHz, Power 1.585 mW, Tuning Sensitivity 56 MHz/V, Tuning Voltage 1 to 4 V, Pulling DC to 4 MHz. Tags: Surface Mount. More details for CVCO55BH-5256-5356 can be seen below.