Voltage-controlled oscillators (VCOs) generate a periodic waveform of a frequency controlled by an input voltage. Phase-locked Loops (PLLs) generate an output signal with a phase related to the phase of a reference signal. Frequency synthesizers generate output signals in a range of frequencies from a fixed timebase or oscillator.
Catalog

ADF4002 Frequency Synthesizer / Phase Detector, PLL
Analog Devices ADF4002 frequency synthesizer / phase...
ADF4107 PLL Frequency Synthesizer, 7GHz
Analog Devices ADF4107 frequency synthesizer. Typically...
ADF4212BRUZ Dual RF/IF PLL Frequency Synthesizer, 2.7GHz, PLL
ADF4212 dual RF/IF PLL frequency synthesizer. The ADF4212...
UMX-724-D16 Ultra Stable Microwave Oscillator / VCO
UMX-724-D16 Ultra Stable Microwave VCO. Package: 13mm x...
VTC4 Voltage-Controlled Temperature-Compensated Oscillator, 3.3V, 20.000MHz, 1ppm
Vectron series VTC4 adjustable, voltage-controlled,...