The MVCO3940 from BOWEI Integrated Circuits is a Voltage Controlled Oscillator with Frequency 3550 to 4330 MHz, Power 1.585 mW, Tuning Sensitivity 55 to 90 MHz/V, Tuning Voltage 1 to 15 V, Phase Noise -113 to -93 dBc/Hz. Tags: Surface Mount. More details for MVCO3940 can be seen below.