The VCO3400 from Dynamic Engineers is a Voltage Controlled Oscillator with Frequency 3400 MHz, Tuning Sensitivity 35 MHz/V, Tuning Voltage 0.5 to 4.5 Vdc, Phase Noise -100 dBc/Hz @ 10 KHz, Phase Noise dBc/Hz @10kHz -100 dBc/Hz @ 10 KHz. Tags: Surface Mount. More details for VCO3400 can be seen below.